__ school is quite nice, and they really like it. a. sons b. sons' c. son's d. son __ bicycle is this?" "It's Mike's. a. Who's b. What c. Which d. Whose 27 Jia

1. The correct answer is c. son's. In this sentence, the possessive form of "son" is needed to indicate that the school belongs to the son. The correct form is "son's" to show possession.<br /><br />2. The correct answer is d. Whose. In this sentence, the word "whose" is used to ask about the ownership of the bicycle. The question is asking to whom the bicycle belongs, so "whose" is the appropriate word to use.