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.