给下列的问句选择正确的答语。 ( ) 1. Where is Kim? ( ) 2. Where is the book? ( ) 3. What are these? ( ) 4. What are they doing? ( ) 5. Where is Steven? a. He is in the gym. b. They are reading books. c. She is in the classroom. d. These are books. e. It's on the desk.