最佳答案:

最佳答案:

　　1234abaa5678bbab

最佳答案:

　　1. —What's Liu Tao doing?

　　—He's playing football.

　　2. —What's Mike doing?

　　—He's drawing a picture.

　　3. —What's Yang Ling doing?

　　—She's playing the piano.

　　4. —What are Bobby and Sam doing?

　　—They're flying a kite.

　　5. —What are Su Hai and Su Yang doing?

　　—They're having lunch.

　　6. —What are Mr and Mrs Brown doing?

　　—They're watching a film.

最佳答案:

　　1234bccb567/bcc/

最佳答案:

　　1. I am cleaning the table.

　　2. Helen is sweeping the floor.

　　3. My mother is cooking breakfast in the kitchen.

　　4. There are some pests on the grapes.

　　5. The apples are big and sweet.

最佳答案:

　　1. It is spring.

　　2. They are having a picnic.

　　3. No，they aren't.

　　4. No，there aren't.

　　5. They are riding a bike.