Fill in the Blanks

The correct answer is 'in' because we say someone came back 'in' a vehicle to indicate the mode of transportation used. 'Came back by car' would also be grammatical, but 'in my car' specifically refers to being inside the vehicle. The other options don't correctly express returning in a vehicle.

The correct answer is 'on' because the verb 'rely' requires the preposition 'on' - 'rely on someone'. The comparative structure 'more on you than on her' shows parallelism. 'No change' would leave the sentence incomplete, while 'to' and 'with' are not used with 'rely'.

The correct answer is 'of' because we use 'made of' when the material has undergone a permanent change and still retains its properties (wood remains wood). 'Made from' is used when the material has been completely transformed. The chair is still wood, so 'of' is correct.

The correct answer is 'don't' because the sentence expresses disbelief about something that the speaker believes should have happened. The structure 'I don't believe you haven't...' uses double negatives for emphasis. 'No change' leaves the sentence ungrammatical, while 'do' and 'am' don't fit this context.

The correct answer is 'have they' because question tags must agree with the main sentence. 'Nobody' is grammatically singular, but question tags with indefinite pronouns like 'nobody', 'everybody', 'someone' use 'they/their' in modern English. The auxiliary verb matches 'has' in the main clause: 'hasn't they' becomes 'have they' in the positive tag.

The correct answer is 'has suspected' because the sentence uses 'looks as if' to describe a present situation that appears to be true. The structure 'it looks as if + subject + present perfect' indicates what seems to be happening now based on evidence. 'Suspects' and 'suspect' are wrong verb forms, and 'have suspected' doesn't agree with the singular subject 'she'.

The verb 'succeed' when followed by an action requires the preposition 'in' - 'succeed in doing something'. 'Succeed to' means to follow someone in position (like succeeding to a throne), while 'succeed in' means to accomplish something. Options A, C, and D are grammatically incorrect in this context.

'Preferable' is an adjective that takes the preposition 'to' when making comparisons. The structure is 'X is preferable to Y'. Using 'than' is incorrect because 'preferable' already contains the comparative meaning. Options C and D are unnecessarily wordy and grammatically incorrect.

The verb 'abstain' always takes the preposition 'from' when followed by an action. The correct phrase is 'abstain from doing something'. This means to voluntarily refrain from or avoid an action. Options A, B, and D are incorrect prepositions for this verb.

'To' is the correct preposition. We send things 'to' places. 

 We must use "was" for this as to indicate everything up to the present point of time.

In the construction 'It is I who...' the verb must agree with the subject 'I'. The subject-verb agreement rule requires 'I am', not 'I is', 'I has been', or 'I has'. This is a formal structure emphasizing the subject. Options A, B, and D show incorrect subject-verb agreement with first person singular 'I'.

In the construction 'It is you who...' the verb must agree with the subject 'you'. The subject-verb agreement rule requires 'you are'. Even though 'you' can be singular or plural, it always takes 'are' in present tense. Options B, C, and D show incorrect subject-verb agreement with 'you'.

'Drastic' means severe, radical, or extreme in effect - 'drastic revision' means a major or substantial change being made to policies. This fits better than 'dubious' (doubtful) for describing policy changes.

 Only option (3) makes a meaningful sentence here. We need a word similar to 'ill will'.