给下列问句选出相匹配的答语。
⑴Did you come back yesterday? A. I lost my cap.
⑵What did you buy? B. No, I didn't.
⑶What's the matter, Ben? C. I bought some apples.
⑷Where did you go? D. There are four.
⑸How many people are there in your family? E. We went to Beijing.