2. 学好英语很重要。__________________________ to study English well.

1. 谢谢你告诉我如何使用电脑。____________________________ use the computer.

10. The teacher told us _________ (not talk) any more.

9. Let us ______ (wait) outside.

8. _______ (travel) by air is very fast.

7. He _____(read) a book when the accident　　 (happen).

6. Joan’s mother often _______ at four, now she 　　　(cook).

5. We ________________　 (see) Uncle Li tomorrow.

4. He　 ______ _______(not　 have) his supper yet.

3. Do you like ________ (drink) milk?