Whose, Who, Whom and That

_______ is the person responsible for organizing the event?

• Whom

• Who

• Whose

• Who's

Answer explanation

The correct choice is 'Who' because it is used as the subject of a verb. In this question, we are asking about the person responsible for organizing the event, making 'Who' the appropriate pronoun.

_______ going to the party tonight?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is "Who's" which is a contraction of "who is". The other options do not fit the context: "Who" is a subject pronoun, "Whom" is an object pronoun, and "Whose" indicates possession.

_______ did you invite to the concert?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Whom' because it is used as the object of a verb or preposition. In this question, 'you invite' requires an object, making 'Whom' the appropriate word to use.

_______ is your favorite teacher?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Who' because it is used as the subject of a question. 'Whom' is used as an object, 'whose' indicates possession, and 'who's' is a contraction for 'who is'. Thus, 'Who is your favorite teacher?' is correct.

_______ are you going to call for help?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Whom' because it is the objective case used when referring to the person receiving the action (calling for help). 'Who' is subjective, 'Whose' indicates possession, and 'Who's' is a contraction for 'who is'.

_______ the one that left the message?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is "Who's" which is a contraction of "who is". The sentence asks for the identity of the person who left the message, making "Who's" the appropriate option. "Who" is a subject pronoun, while "whom" is an object pronoun.

_______ did you see at the mall yesterday?

• Who

• Whom

• Whose

• Who's

Answer explanation

• You are essentially asking, "Did you see whom at the mall?" where "whom" refers to the person being seen.

• If you rephrase the question into a statement, it would be: "You did see whom at the mall.

_______ is the author of this book?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Who' because it is used as the subject of a question asking for the identity of the author. 'Whom' is used for the object, 'whose' indicates possession, and 'who's' is a contraction for 'who is'.

_______ should I address the letter to?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Whom' because it is the objective case used when referring to the person receiving the action. In this context, you are asking about the person to whom the letter should be addressed.

_______ is the new student in our class?

• Who

• Whom

• Whose

• Who's

Answer explanation

The correct choice is 'Who' because it is used as the subject of a question. 'Whom' is used as an object, 'Whose' indicates possession, and 'Who's' is a contraction of 'who is'. Thus, 'Who is the new student in our class?' is correct.