Fill in the blanks with suitable pronouns:
During your trip _______ country did you visit first? _______ car did you use to drive there? [Advanced]
Interrogative pronouns are used for asking questions. ‘Who’, ‘whose’ and ‘which’ are interrogative pronouns. We use ‘who’ to ask questions about the people. ‘Who’ is used in the place of the subject of the question, like in “Who are they?”. Since the first sentence doesn’t ask a question about the people, ‘who’ is unsuitable for both blanks. Thus options A and D are incorrect. On the other hand, we use ‘which’ to ask someone to name a particular thing, especially when there are two or more choices. Since the sentence focuses on naming the countries they visited during their trip, ‘which’ is the apt answer. Further we use ‘whose’ to ask to whom something belongs to. Since the second sentence deals with a car that belongs to someone and not a person, ‘whose’ would be the apt answer. Therefore option B is correct, while option C is incorrect.