Look at the questions, choose the correct answers（看問題，選擇正確的回答）

(1)What colour is your bike?　　□

(2)What's he doing?　　　　　　□

(3)What do dogs like to eat?　　　□

(4)Are these cats dirty?　　　　　□

(5)What are these?　　　　　　　□

A．He is cooking in the kitchen.

B．Mine is blue.

C．They are ducks.

D．They like to eat meat.

E．No, they aren't.