1. (2019三下·射阳期中) 给下列句子选择恰当的答句。

⑴Please don't sleep in class.     A. It's on the chair.

⑵Where is my schoolbag?        B. I'm sorry.

⑶Is that your pencil?                C. No, it isn't.

⑷Open the door, please.          D. It's a pen.

⑸What's this?                           E. Yes, Mr Green.