5. 天气越冷，人们穿得就越多。 cold

4. 我认识李雷已经五年了。　 know

3. 我已经选好了一双鞋，但还没付款呢。　 choose　 pay

2. 你包过饺子吗? 没有，一次也没有。　 make　 a dumpling　 no

1. 你还没写完作业呢, 对吧?　 finish　 yet　

10. Is Mr. Liu in? No, he _______________ to American on business.

9. Tom has made a big mistake, so he ________________ making his mother angry.

8. No ___________ on the floor!

7. There are many______________ between Chinese and Japanese.

6. No matter what you say, I ___________________ to leave.