用括号里的词的适当形式填空。

1. _____ (learn) a foreign language requires our effort.

2. Tom is good at _____ (recite) Tang Poem.

3. I hope that you can continue _____ (make) progress next year.

4. I know those people _____ (who) levels are very high.

5. I'm sure there will soon be more people _____ (speak) Chinese.

6. You must drive _____ (care) when it's snowing heavily.

7. Our classroom is bigger than _____ (you).

8. It's good _____ (practise) _____ (speak) English. even if the other person is better than you at English.

9. I know him _____ (fair) well.

10. It's a language which looks _____ (simple) than it actually is.