1. (2019三上·仁寿期末) 从B栏中选出A栏句子的正确答语

A ⑴Where's the pencil?    ⑵How old are you?    ⑶What's this?    ⑷Is it a black dog?    ⑸How are you?

B A. Yes, it is. B. It's a window. C. It's on the chair. D. I'm fine. E. I'm nine.