(    )    2. He helped a lot of children with their schooling,_he was not rich enough.

A. if    B.    unless    C. since    D.    though

(    )    1.    — Mr Green, can I continue with the training?

—Sorry, you can’t _ you    haven’t got well enough.

A. until    B.    before    C. as    D.    unless

8.    As I have another meeting to attend, let me make a few_(suggest) first.

7. I don’t like your friends. Both of them are so_(bore).

6. The young man appeared_(relax)    before the important match.

5. She has_(decide)    how she should deal with the matter.

4. We_(选择）our monitor by a show of hands at the beginning of this term.

3. The old man usually goes out for a_(呼吸）of fresh air on sunny mornings.

 5.由于时间还早，他建议去买些饮料。

         _it was still early, he _  some    drinks.

2.    For students in Wuxi, the longest holiday is in summer,_(持续）two months.