1)whose book is that? it`s.... a) her b)they c) hers d)you e) to her 2)who advised you to choose this profession? my father... a) does b) has done c) is d) did e) had 3) .... is dan`s sister? she is a secretary at our college a) whom b) how c) what d) where e) when

Here are the correct answers for your English grammar questions, along with brief explanations for each. 1. Whose book is that? It’s...

• Correct Answer: c) hers
• Explanation: In this sentence, we need a possessive pronoun to replace "her book."
  • Her (a) is a possessive adjective and must be followed by a noun (e.g., "It's her book").
  • Hers (c) stands alone and indicates ownership without repeating the noun.

2. Who advised you to choose this profession? My father...

• Correct Answer: d) did
• Explanation: When answering a question asked in the Past Simple tense ("Who advised..."), we use the auxiliary verb did to avoid repeating the main verb.
  • "My father did" is short for "My father advised me."
  • Options like does (present) or has done (present perfect) do not match the tense of the original question.

3. ... is Dan’s sister? She is a secretary at our college.

• Correct Answer: c) what
• Explanation: While this may seem counterintuitive if you are looking for a name, the answer provided ("She is a secretary") describes her profession/occupation.
  • In English, when asking about someone's job or role, we use What.
  • If the answer had been a name (e.g., "She is Jane"), the question would have used Who.
  • How, Where, and When do not fit the context of identifying a person's professional status.

I can provide a set of similar practice exercises on possessive pronouns or auxiliary verbs if you would like to test these rules further.