Choose the correct relative pronoun in each sentence.

Let's solve each question step by step and explain the reasoning behind the correct answer.

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Question 1:

Women _______ drive vehicles are usually more careful than men.

- A. which
- B. they
- C. whom
- D. who

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "women" with the clause "drive vehicles."
- "Women" is a plural noun referring to people, so we need a relative pronoun that can refer to people.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "They" is a pronoun but cannot be used as a relative pronoun in this context.
- "Whom" is used when the pronoun is the object of a verb or preposition, but here "drive" is a verb where the subject is needed.
- "Who" is the correct choice because it refers to people and acts as the subject of the verb "drive."

#### Correct Answer: D. who

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Question 2:

The girl _______ hair is red is my sister.

- A. which
- B. she
- C. whom
- D. whose

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "girl" with the clause "hair is red."
- "Hair" is a possession of the girl, so we need a possessive relative pronoun.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "She" is a pronoun but cannot be used as a relative pronoun in this context.
- "Whom" is used when the pronoun is the object of a verb or preposition, but here we need a possessive form.
- "Whose" is the correct choice because it shows possession (the girl's hair).

#### Correct Answer: D. whose

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Question 3:

The policemen _______ helped me yesterday were very nice.

- A. which
- B. who
- C. whom
- D. whose

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "policemen" with the clause "helped me yesterday."
- "Policemen" is a plural noun referring to people, so we need a relative pronoun that can refer to people.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "Whom" is used when the pronoun is the object of a verb or preposition, but here "helped" is a verb where the subject is needed.
- "Who" is the correct choice because it refers to people and acts as the subject of the verb "helped."

#### Correct Answer: B. who

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Question 4:

Do you know the man _______ they’re talking about?

- A. whom
- B. whose
- C. which
- D. A & C

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "man" with the clause "they’re talking about."
- "Man" is a singular noun referring to a person, so we need a relative pronoun that can refer to people.
- "Whom" is used when the pronoun is the object of a verb or preposition. In this case, "about" is a preposition, so "whom" is correct.
- "Whose" is used to show possession, but there is no possession in this sentence.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "A & C" is incorrect because "which" is not suitable here.

#### Correct Answer: A. whom

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Question 5:

Michael told me about students _______ have just got the scholarship.

- A. which
- B. Ø
- C. who
- D. whose

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "students" with the clause "have just got the scholarship."
- "Students" is a plural noun referring to people, so we need a relative pronoun that can refer to people.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "Ø" (nothing) is incorrect because a relative pronoun is needed to connect the clauses.
- "Whose" is used to show possession, but there is no possession in this sentence.
- "Who" is the correct choice because it refers to people and acts as the subject of the verb "have."

#### Correct Answer: C. who

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Question 6:

I met a lot of new people at the party _______ names I can’t remember.

- A. whose
- B. which
- C. who
- D. whom

#### Explanation:
- The sentence is missing a relative pronoun to connect the noun "people" with the clause "names I can’t remember."
- "Names" is a possession of the people, so we need a possessive relative pronoun.
- "Which" is used for objects or animals, not people, so it is incorrect.
- "Who" is used when the pronoun is the subject of a verb, but here we need a possessive form.
- "Whom" is used when the pronoun is the object of a verb or preposition, but here we need a possessive form.
- "Whose" is the correct choice because it shows possession (the people's names).

#### Correct Answer: A. whose

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Final Answers:

1. D. who
2. D. whose
3. B. who
4. A. whom
5. C. who
6. A. whose

Boxed Final Answer:
\[
\boxed{D, D, B, A, C, A}
\]