() 4. Most of the business letters in English.

   A. are written   B. has written   C. are writing   D. was written

() 3. Carry while I'm away.

   A. with working   B. working

   C. on to working   D. on with your work

() 2. The back door can he used an exit if necessary.

   A. for   B. by   C. as   D. to

三、单项填空

() 1. We felt when Jim won the first prize again.

   A. brave   B. proud   C. successful   D. worried

二、根据对话内容，写出句中所缺单词

1. —Who sent you thevSe beautiful flowers?

  —One of my . The girl says she enjoys my book.

8. We decided to spend our winter holiday in (印度) since it is warm there.

7. Is your (秘书) a new girl? I haven’t met her before.

6. Some children can’t (负担得起) to go to school so they have to work to support their families.

5. We should do something to prevent the (扩散) of this kind if diease.

2. —I couldn’t go any ，Dad I'm too tired.

  —Come on,boy. There're only a few steps away from the mountain top.