Question

This is the book that i have found in the box;______is it A.whom. B.whose. C.when. D.where

Answer 1

Answer: B.whose

Who

'Who' is a subject pronoun like 'he', 'she' and 'they'. We use 'who' to ask which person did an action or which person is in a certain state. Example:

1. Who is going outside?
2. Who are you?
3. Who is managing the market?

Whom

'Whom' is an object pronoun like 'him', 'her' and 'us'. We use ‘whom’ to ask which person received an action. Example:

1. Whom are you going to ask to the party?
2. Whom did they choose as team captain?
3. Whom did they summon?

Whose

'Whose' is a possessive pronoun like 'his', and 'our'. We use 'whose' to find out which person something belongs to. Example:

1. Whose phone does this belong to?
2. Whose car is blocking the drive?
3. Whose child is raising a ruckus in the street?

When

'When' is used to ask for information about what time something happens in the present/past/future and in indirect questions. Example:

1. When will you know the result of the exam?
2. I wonder when the new computers will arrive.
3. When the new park opens, I’ll go there every day.

Where

"Where" is used to ask for information about place and in indirect questions. We use it as a conjunction meaning ‘in the place that’ or ‘in situations that’. Examples:

1. Where was the party going to take place?
2. I asked him where I could buy an umbrella.
3. Where you find a lotof water, you will also find beautiful insects.

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    hope it helped
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Answer 2

Answer:

This is the book that I have found in the box; whose is it

Explanation:

by saying this is the book I have found in the box, we know that we will not be asking "where" is it (because it is here)

we are not asking "whom" is it, because that would mean we are asking about who the book is ('who' being a person; the book is not a person)

we are not asking "when" is it, because that is not grammatically correct or logical

so, we are asking "whose is it"

hope this helps!!