3. Potatoes can provide one-third of our daily (require) of vitamin C.

2. The team has been training hard in (prepare) for the big game.

用括号内单词的正确形式填空。

1. What sort of (qualify) do you need for the job?

9. This is only a rough (草稿) 一the finished article will have pictures as well.

8. It was freezing cold in the cave. His fingers were beginning to turn n.

7. We gratefully a the contributions of everyone who helped us.

6. The course will be taught through a series of I and seminars.

5. The book is highly (推荐) to anyone with an interest in chemistry.

4. You can s chicken for beef if you don't like red meat.

3. All evening her husband (反驳) everything she said.