Some of the boys enjoy ______ football.

A．play

B．playing

C．to play

D．played

use（现在分词）_____________

Are they _______ fast? (    )

A．run

B．running

C．runs

D．running

动词加ing形式：例：go—going
1. wash— ________ 2. cook— ________    3. write— ________
4. make— ________ 5. skate— ________ 6. have— ________

用单词的适当形式填空
1. Look, the children are doing morning _____________ (exercise).
2. My brother and I like ___________(drink) coffee.
3. The bird can _______________ (sing) the “ABC” song. It’s very clever.
4. His mother often___________ (help) him to do his homework.
5. There are many________________ (different) between you and your twin brother.