题目内容
Be careful with the knife, ______ you’ll be hurt.
| A．so | B．or | C．but | D．because |
B
解析试题分析：句意：小心刀子，否则你会受伤。祈使句作条件状语，表顺承用and或then连接，表转折用or连接，根据句意此处表转折，故选B。
考点：考查连词的用法。
--Now most teenagers write to each other not by letter ________online.
--Yes, the Internet has become a part of their life.
| A．or | B．and |
| C．but | D．so |
The children were worried about their mother. They didn’t go to bed ___ their mother came back..
| A．when | B．while | C．until | D．after |
—Since you’ve tried your best, I’d like to give you one more chance.
—Thank you so much!
| A．As soon as | B．Because |
| C．When | D．As long as |
—How do you plan to travel to Beijing, Jack?
—I haven’t made up my mind ________to go by plane or not.
| A．if | B．whether | C．when | D．how |
I think we should give him another chance _______ he has made some mistakes.
| A．though | B．unless |
| C．if | D．until |
_____ I was in the USA, I made a lot of friends there.
| A．While | B．Although |
| C．Unless | D．Until |
—When will you return the book to me?
—I’ll give it to you _________ I finish it.
| A．once | B．until |
| C．as soon as | D．unless |
— Does your aunt usually walk the dog in the park?
— Yeah, bad weather stops her.
| A．when | B．since |
| C．unless | D．if |