口语交际。

It's three o' clock in the afternoon. Some children are in the kitchen.

A: What's Mike doing?

B: He is good at cooking .

A:  

A:Is Wang Bing helping?

B: He is washing the dishes.

A:

B:She is cooking vegetables.

A. Who is cleaning the table? B. He is cooking fish. C. Yes, he is. D. What's Yang Ling doing?