Explanation: No substitution. The sentence is grammatically correct.

Explanation: No substitution. The sentence is grammatically correct

Explanation: ‘So many’ will be replaced by ‘some more’ because the teacher is asking for additional(extra) examples of subordinate clauses and for which we will use ‘more’ not ‘many’. Hence, ‘some more examples of’ is the most appropriate answer.

Explanation: Among means referring to a particular group of people or things. Similarly, the given sentence refers to different restaurants. However, ‘among’ is also used for two or more people. Hence, ‘among’ is the most appropriate answer.

Explanation: We cannot use two different conjunctions ‘Although’ & ‘But’ together in a sentence for the same clause. So, we use either of them to correct the sentence. Hence, ‘Although the children studied hard, they’ is the most appropriate answer.

Explanation: According to the “Subject-Verb Agreement Rule”, a singular subject always takes a singular verb and a plural subject always takes a plural verb. In the given sentence, ‘Apples’ is a plural subject that will take ‘were’ as a plural verb. Hence, ‘were rotten’ is the most appropriate answer.

Explanation: We use ‘too much’ with countable nouns & ‘too many’ with countable nouns. For example, I have got too many shoes(countable) & I have got too much food(uncountable). However, the given sentence talks about noise which is uncountable so we will not use ‘too’ with ‘much’. Hence, ‘the place is too noisy’ is the most appropriate answer.

Explanation: Subjunctive sentences (in which we express a hypothetical/wish/desire). Here, in the given sentence, the narrator is expressing a desire to come an hour sooner. Hence, ‘have’ will be replaced by ‘had’ to make the given sentence grammatically correct.

Explanation: “One of the + Superlative degrees of the adjective(best, worst, etc)” is grammatically the correct structure. For example, one of the best, one of the greatest, one of the worst, etc. Similarly, ‘Sholay is one of the most popular Hindi movies’ is the most appropriate answer.

Explanation: No substitution is required as the sentence is grammatically correct.

Explanation: According to the “Subject-Verb Agreement Rule”, a singular subject always takes a singular verb and a plural subject always takes a plural verb. In the given sentence, ‘Medicine’ is a singular subject that will take ‘has’ as a singular verb. Hence, ‘is one which has given’ is the most appropriate answer.

Explanation: “Wh-family(Who, When, How, What, Where) + Subject + Verb” is grammatically the correct structure for an Interrogative sentence(in which a question is asked) written in Indirect speech. For example, Sam asked me where I was going. Similarly, the given sentence is also an interrogative statement. Hence, ‘how far his office(Subject) was(verb)’ is the most appropriate answer.

Explanation: No substitution. The sentence is grammatically correct.

Explanation: We generally use ‘hear’ for such sounds that involuntarily come to our ears. However ‘listen’ is used when we pay attention to sounds that are going on somewhere. Similarly, in the given sentence, someone is saying to pay attention to the news at 9 pm today. Hence, ‘listen to’ is the most appropriate answer.

Explanation: No substitution. The sentence is grammatically correct.

Explanation: No improvement required

Explanation: There is a prepositional error in the given sentence. The preposition ‘of’ should be replaced with ‘to’ to make the sentence grammatically correct. Hence, ‘the students to fill the form’ is the most appropriate answer.

Explanation: According to the “Subject-Verb Agreement Rule”, a singular subject always takes a singular verb and a plural subject always takes a plural verb. In the given sentence, ‘No one’ refers to a singular subject that will take ‘is’ as a singular verb. Hence, ‘no one is supposed to react’ is the most appropriate answer.

Explanation: When we do a comparison between two things, we don’t use ‘more’ with a comparative degree (taller) because it becomes a case of superfluousness(not necessary). Hence, ‘taller’ is the most appropriate answer.

Explanation: The preposition ‘to’ always takes the first/base form of the verb(V1) with it. However, ‘go’ is the first form of the verb ‘went’. Hence, ‘not to go’ is the most appropriate answer.

Explanation: The article ‘The’ is used to refer to specific or particular nouns & Article ‘a’ is used to modify non-specific nouns. For example, If I say Let’s buy the book. I mean a specific book but if I say Let’s buy a book, I mean any book rather than a specific book. Similarly, in the given sentence, the magnifying glass is not specified so it can be any glass. Hence, ‘with a magnifying glass’ is the most appropriate answer.

Explanation: ‘For’ refers to a period of time or a numerical value of time, for example for 2 years, for 4 weeks, for 3 days, etc. However, in the given question, the period of time is 1 month. Hence, ‘here for one month’ is the most appropriate answer.

Explanation: We always use a singular verb with an uncountable noun(milk in the sentence). However, ‘is’ is a singular verb & ‘are’ is a plural verb. Hence, ‘is donated by the committee’ is the most appropriate answer.

Explanation: The phrase ‘fell behind’ means fail to keep up with one’s competitors or fail to do something on time. The given sentence states that he failed to keep up with his studies owing to his illness. Hence, ‘fell behind’ is the most appropriate answer.

Explanation: The phrase ‘pull down’ means demolish a building. Similarly, the given sentence also talks about an old building that was demolished. Hence, ‘was pulled down’ is the most appropriate answer

Explanation: The article ‘the’ is used to refer to specific or particular nouns & articles ‘a/an’ is used to modify non-specific or non-particular nouns. For example, if someone says, “Let’s buy the book,” it means a specific book but if someone says, “Let’s buy a book,” it means any book rather than a specific book. Similarly, in the given sentence, Apple is not particularly specified so it can be any apple. However, the article ‘an’ is used with words starting with a vowel(A,E,I,O,U). Hence, ‘An apple a day’ is the most appropriate answer.

Explanation: Some Nouns like Herd, Cattle, Baggage, Scenery, Furniture, etc. are always written in the singular form so we can’t make their plural form. For example, ‘furniture’ is correct but ‘furnitures’ is incorrect. However, these nouns always take a verb in its singular form(is). Hence, ‘The herd is grazing’ is the most appropriate answer.

Explanation: According to the “Subject-Verb Agreement Rule”, a singular subject always takes a singular verb and a plural subject always takes a plural verb. In the given sentence, ‘Sunil’ is a singular subject that will take ‘has’ as a singular verb. Hence, ‘has been working’ is the most appropriate answer

Explanation: The given sentence is in the past tense(would) so the verb must be used in its past form(came) and not in the base/present form(come). Hence, ‘he came to know ’ is the most appropriate answer.

Explanation: The phrase ‘mend one’s ways’ means to improve one’s habits or behaviour. The given sentence states that he will lose all his wealth if he does not improve his habits or behaviour(doesn’t mend his ways). Hence, ‘doesn’t mend’ is the most appropriate answer.

Explanation: The preposition ‘to’ always takes the first form of the verb(V1) with it. However, ‘prove’ is the first form of ‘proved’. Hence, ‘gave to prove(V1) his point’ is the most appropriate answer.

Explanation: The given sentence is in the present tense so the verb must be used in its base/present form(do) and not in the simple past form(did). Hence, ‘do not worry’ is the most appropriate answer.

Explanation: The given sentence is in the past tense(punished) so the verb must be used in its simple past form(violated) and not in the base/present form(violates). Hence, ‘who violated’ is the most appropriate answer.

Explanation: No substitution

Explanation: No substitution

Explanation: We use both ‘Little’ & ‘Less’ for uncountable singular nouns like work, information, news, etc. However, ‘less’ is generally used when we do a comparison. But, in the given sentence we are not doing any comparison so ‘less’ will be replaced with ‘little’. Hence, ‘gave very little information’ is the most appropriate answer.

Explanation: There is a prepositional error in the given sentence. The preposition ‘inside’ must be replaced with ‘in’. Hence, ‘in some fields like’ is the most appropriate answer.

Explanation: ‘The need of the hour is’ is the correct phrase for the given sentence. Hence, ‘the need of the’ is the most appropriate answer.

Explanation: News is an uncountable noun and with an uncountable noun, we use a singular verb. However, ‘is’ is a singular verb & ‘are’ is a plural verb. Hence, ‘the news is true’ is the most appropriate answer.

Explanation: Warmth is a moderate degree of heat or the sensation of being warm. The given sentence states that bats huddle together for the sensation of warmth from each other. Hence, ‘warmth from’ is the most appropriate answer.

Explanation: According to the “Subject-Verb Agreement Rule”, a singular subject always takes a singular verb and a plural subject always takes a plural verb. In the given sentence, ‘Crowd’ is a singular subject that will take ‘has’ as a singular verb. Hence, ‘has gathered around the area’ is the most appropriate answer.

Explanation: ‘Someone is kept under surveillance’ is grammatically the correct structure. Hence, ‘kept under’ is the most appropriate answer.

Explanation: The former part of the given sentence is in the present perfect tense and the later part is in past tense so in the former part, the verb must be used in its past perfect form(had) and not in the present perfect form(has).However, “had + V3” is the correct grammatical structure for the given sentence.

Explanation: According to the “Subject-Verb Agreement Rule”, “1st Subject + with/ along with/ together with/ as well as + 2nd Subject + Helping Verb” is grammatically the correct structure in which the helping verb is supplied according to the first subject. Similarly, in the given sentence, ‘Supriya’ is the first subject in a singular form which will take ‘has’ as a singular verb.

Explanation: ‘Most’ is used as the superlatives of ‘many’ and ‘much’ that means greatest in number or the amount & ‘All’ means the whole of a thing. The given sentence states to make a list of all the things he would like to do once this lockdown is over. Hence, ‘all’ is the most appropriate answer.

Explanation: TEAR UP (phrasal verb): destroy something by pulling it into pieces; damage or destroy something by attacking it.We can either write “to + V1” or “for + V-ing” in a sentence. Both are grammatically correct.

Explanation: No substitution required.

Explanation: What is used for asking for information about somebody/something & ‘that’ is used to introduce the next part in a sentence. However, in the given sentence the narrator is asking someone what he is trying to say. Hence, ‘what you’ is the most appropriate answer.

Explanation: “Neither/Either + 1st Subject + Nor/or + 2nd subject + Helping verb” is grammatically the correct structure in which the helping verb is supplied according to the second subject. Similarly, in the given sentence, ‘the child’ is the second subject in a singular form which will take ‘was’ as a singular verb. Hence, ‘was happy with’ is the most appropriate answer.

Explanation: No substitution is required