用所给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.

6. I go to the movies _____  (first) a month.

7. He's too young. He can _____ (hard) ride a bike.

8. Our English teacher likes to wear _____ (color) clothes, because she wants to be young .

9. A good _____ (eat) habit is good for your health.

10. In winter, my father often goes _____  (skate) .