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.