Fill in the Blanks

Question tag should be in the same tense as the preceding statement and a negative statement is followed by a positive question tag. 

Hence, option (4) is the correct answer.

Here, a particular pen stand is talked about and not just any pen stand. So, 'the' is the correct article to be used in the given sentence.

A group of soldiers is called an 'army'. Hence, option (3) is the correct answer.

'Their' refers to people. So, it fits here. Other options do not make any sense here.

It is the short form of 'while I was going'. Double introduction of subject and helping verb is often omitted after 'while'.

Comparative word ‘than’ is used here, so comparative degree 'deeper' will be used with it.

'Walking quickly' is the correct phrase; adverb 'fast' is used with 'running' and 'riding'. Jogging does not make any sense here.

If somebody tells their problem to the doctor related to their medical condition, the doctor would prescribe a medicine to treat them.

It is a past event (last month), so 'had stolen' (past perfect) will be used.

For the given dialogue, option (1) is the correct answer as the speaker asks what Mohit is doing.

'The day' is the correct answer because a particular day (we first met) is given here.

Their stories did not match as the boy said something different that is mentioned in S3.

A store is where we go to buy things. So, option (2) is the correct answer here.

 Whenever we have to choose one out of the two choices, we use 'or' as conjunction.

 'And' is a coordinate conjunction joining words of equal significance in the sentence. Hence, 'and' is the correct option.