1. 情景配对

⑴Where are your parents?                           A. Yes, I'd like some fruit.

⑵Is your brother sleeping in the room?      B. They are at home. 

⑶Can I help you?                                         C. She's playing the piano.

⑷Would you like some fruit?                       D. No, I'm not.

⑸Can you see the red light?                        E. She's singing.

⑹What is Helen doing?                                F. Yes, please.

⑺Are you busy?                                           G. No, I can't.

⑻What is she doing in the music room?     H. No, he isn't.