Pronouns must agree with their antecedents in number and person. This sentence starts off in the second-person (“when you think about children,”), then shifts to first-person “we”. “we” should be replaced by “you” so the sentence maintains the second-person.

Pronouns must agree with their antecedents in number and person. This sentence begins in the third-person with “when people play team sports,” then shifts to the second-person “you”. “you” should be replaced with the third person “they”.

Pronouns must agree with their antecedents in number and person. In this case, the antecedent is plural (David’s family), so the pronoun needs to be plural as well.

A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear who is being referred to. In this example, it's unclear who "They" are. We can assume based on the context that "They" might be a doctor, but we can't be sure.

A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear who is being referred to. In this example, it's unclear who "she" is. Is "she" Ali or Melissa? "She" needs to be replaced with one of the names.

A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear who is being referred to. In this example,

A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear who is being referred to. In this example, it's unclear who "her" is.

Correct Answer: It

解释:一个模糊的pronoun occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear what is being referred to. In this example, it is unclear which option “It” is. In this case, “It” seems to be referring to either kicking the extra point or going for the two-point conversion, but we can’t be sure.

Correct Answer: we

解释:一个模糊的pronoun occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear who is being referred to. In this example, it is unclear who “we” refers to. “we” seems to refer to either the Eagles or the Bobcats, but we have no way of determining which one.

Correct Answer: she

解释:一个模糊的pronoun occurs when a pronoun could refer to more than one possible antecedent, thus making it unclear what is being referred to. In this example, it is unclear who “she” is referring to. “she” seems to refer to either the girl or her mother, but it is unclear.