Explanation: ‘Since’ & ‘for’ are used in those sentences which are written in either present perfect continuous tense (Has/Have been + V-ing) or past perfect continuous tense (Had been + V-ing). In the given sentence, the phrase for the last two years states that it should be written in the present perfect continuous tense. Hence, ‘I have been writing a novel’ is the most appropriate answer.

Explanation: “to + V1” is the correct grammatical structure for the given sentence. Hence, ‘travel’ is the most appropriate answer.

Explanation: No substitution required.

Explanation: If two actions take place in the future then the 1st action must be in the present tense(V1) and the 2nd action must be in future tense(will/shall). In the given sentence, getting leave from the office is the 1st action and picking up from the station is the 2nd action. Hence, ‘pick me up’ will be replaced by ‘will pick me up’ to make the given sentence grammatically correct.

Explanation: No substitution required

Explanation: According to the “Question tag rule”, if the statement is positive, the question will be negative but in the contracted form(‘t) and Vice-versa. The given sentence is positive so the question tag will be negative. Hence, ‘haven’t you’ is the most appropriate answer.

Explanation: ‘Fall victim to’ is a phrase that means to be attacked or affected by something. The given sentence states that it is the responsibility of all of us to not get affected by fake news. Hence, ‘not fall victim’ is the most appropriate answer.

Explanation: The later part of the given sentence is in the present tense & states a habitual action so the verb must be used in its base form(watches) and not in the present continuous form(watching). Hence, ‘watching’ will be replaced by ‘watches’ to make the given sentence grammatically correct.

Explanation: No substitution is required.

Explanation: No substitution is required.

Explanation: The structure ‘as much as’ is used to say that an amount is as large as another amount. The given sentence states that the amount of rainfall that Mawsyrnram gets is as large as in any other place in India. Hence, ‘as much rainfall as’ is the most appropriate answer.

Explanation: We generally ‘insure’ our life & our belongings against some mishappenings like an accident, death, etc. Similarly, the given sentence states that it is wise to insure one’s home against fire. Hence, ‘against’ is the most appropriate answer.

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

Explanation: The given sentence is in the past tense(Wasim agreed) so the verb must be used in the past form(would) and not in the base form(are). Hence, ‘on the condition that he would return’ is the most appropriate answer

Explanation: No substitution required

Explanation: ‘Did’ always takes the first/base form of the verb(V1) with it. Hence, ‘ so he did not carry(V1) his own’ is the most appropriate answer.

Explanation: No substitution required

Explanation: The sentence gives a negative sense(cannot) so it will have negative conjunction like ‘unless’. However, we do not use negative words like any/never/not with unless.

Explanation: The given sentence is in the past tense(was) and 3rd form of the verb will be used. Hence, ‘use’ will be replaced by ‘used’ to make the sentence grammatically correct.

Explanation: According to the question tag rule, if the statement is positive, the question will be negative and in the contracted form(‘t). The given sentence is positive so the question will be negative. Hence, ‘haven’t they’ is the most appropriate answer.

Explanation: The given sentence is in the past tense(could not find) so the verb must be used in its simple past form(was) and not in the present perfect continuous form(has been crying). Hence, ‘has been crying’ will be replaced by ‘was crying ’ to make the given sentence grammatically correct.

Explanation: Lose means to become unable to find something, for example I have lost my bag. However, ‘loose’ means something not firmly fixed or not fitting closely, not tight like the green shirt in the given sentence. Hence, ‘lose for me’ will be replaced with ‘loose for me’ to contextually correct the sentence.

Explanation: RULE: This is a conditional sentence.If two actions take place one after the other in future, and if the second action depends on the first action, the first action is in simple present tense and the second action is in the simple future tense. ‘If + simple present, simple future’.Thus, If he doesn’t reach the station in time, he will surely miss the train.

Explanation: Let’s look into the meaning of the given words in the optionspalatial : (used about a room or building) like a palace; extremely large and spacious. pushy :trying hard to get what you want, in a way that seems rude Palatable: (used about food or drink) with an agreeable or pleasant taste Here, ‘palatial’ is the most appropriate answer.

Explanation: that she worked with. The given sentence is in the Past Tense. so ‘worked with’ will be used in place of ‘work with’.

Explanation: was practicing for. The incident i.e reason for the delay was in continuous tense in the past. Hence, ‘was + V1 + ing’ is the correct structure. The sentence is talking about the reason for the delay which belongs to the past event so ‘ was practicing for’ will be used.

Explanation: No improvement.

Explanation: ‘is held up by’ should be used in place of ‘is being held up over’.The use of ‘being’ is wrong as it is used in present or past continuous tense. ‘Being’ is used in the passive sense and it is incorrect as per the context of the given sentence.The roof is held up by two stone pillars Hence, option (d) is the correct answer.

Explanation: The phrase ‘a nose-based vaccine’ should be replaced by a nasal vaccine to make the sentence contextually correct. a nasal vaccine: the vaccine which is given via the nose, rather than orally or through the arm.

Explanation: had grown quite tall. The given sentence is in past tense so use past tense (had ) +V3 to make the sentence grammatically correct.

Explanation: Replace ‘options available of me’ with ‘ options available to me’.‘available to’ is used in the context of a person whereas ‘available for’ is used in the context of a purpose. So, correct answer: What are the options available to me for a change of career?

Explanation: If the box breaks. RULE: This is a conditional sentence.If two actions take place one after the other in future, and if the second action depends on the first action, the first action is in simple present tense and the second action is in the simple future tense. ‘If + simple present, simple future. Thus, If he doesn’t reach the station in time, he will surely miss the train. If the box breaks the glass bottle will be shattered.

Explanation: so as to give The correct sentence structure using Infinitive is as follows: Infinitive: To + Base Verb (v1) (as:- to eat, to go, to study) Similarly in this sentence, Large glasses magnified his eyes so as to give him the appearance of a wise owl.

Explanation: some money .We use ‘some’ for affirmative sentences, and ‘any’ for questions or negative sentences.As per the given sentence, I want to buy this book, then obviously we need some money .Hence ; some money’ is the appropriate answer.

Explanation: during the day ‘Across the days’ should be replaced with ‘during the day’.So. the correct sentence will be “Small desert animals burrow underground during the day and come out only at night”.

Explanation: No improvement.I must have dropped one of my gloves in the car. The sentence does not require any improvement. It seems to be grammatically appropriate.

Explanation: According to the “Subject-Verb Agreement rule”, a singular subject takes a singular verb and a plural subject takes a plural verb. In the given question, ‘miscreants’ is a plural subject so it will take ‘were’ as a plural verb. Hence, ‘were kept’ is the most appropriate answer.

Explanation: The later part of the given sentence must be in the present continuous tense so it will have a verb in its continuous form(buying) and not in the base form(buy). Hence, ‘that buying more’ is the most appropriate answer.

Explanation: We use ‘than’ when we do a comparison between two things like salaries of a school teacher and a college lecturer are compared in the given sentence. However, ‘fewer’ is used with plural countable nouns, and salary in the sentence is uncountable. Hence, ‘fewer salary from’ will be replaced by ‘a lower salary than’ to make the given sentence grammatically correct

Explanation: Threaten means to warn that you may hurt, kill or punish somebody if he/she does not do what you want. Similarly, the given sentence states that the workers union has threatened to go on an indefinite strike. However, threaten will take the preposition ‘to’ with it. Hence, ‘for going to’ will be replaced by ‘ to go on’ to grammatically correct the sentence.

Explanation: The given sentence is in the present tense so the verb must be used in its present/base form(likes) and not in the present continuous form(liking). Hence, ‘liking’ will be replaced by ‘likes’ to make the given sentence grammatically correct.

Explanation: “Had + V3 ______ would have been + V3” is a grammatically correct structure. However, ‘interfered’ is the third form(V3) of ‘interfere’ and not ‘interfering’. Hence, ‘had you not interfered’ is the most appropriate answer.

Explanation: Inflict means to force somebody to have something unpleasant or something that he/she does not want. However, Inflict takes the preposition ‘on’ with it. Hence, ‘will be inflicted on them’ is the most appropriate answer.

Explanation: Observe means notice or perceive (something) and register it as being significant. The given sentence states that education is not about having a career but about being able to look, notice and listen. Hence, ‘observe’ is the most appropriate answer.

Explanation: “One of the + Superlative degree 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, ‘Ashoka was one of the greatest kings’ is the most appropriate answer.

Explanation: In the given sentence, ‘human beings’ is a plural subject/noun so we will use a plural pronoun(them) for them. Hence, ‘engulfs them’ is the most appropriate answer.

Explanation: No substitution required

Explanation: The given sentence is in the Present perfect continuous tense(Has/Have been + V-ing) so the verb cannot be used in ‘being’ form. Hence, ‘being seating’ will be replaced by ‘been sitting’ to make the given sentence grammatically correct.