Most students like the teachers________understand them well．
| A．who |
| B．when |
| C．what |
| D．which |
【2012 贵州遵义】—How was your climbing Mount. Huang?
—I didn’t believe I could do it _______ I got to the top.
A. until while C. after
【2012 贵州遵义】Help others whenever you can_______ you’ll make the world a nicer place to live in.
A. or B. and C. but
【2013山东临沂】Please hold on to your dream one day it comes true.
| A．if | B．until | C．unless | D．though |
【2013江苏连云港】 I won't watch basketball matches ________ James is playing. He pays much attention to teamwork.
| A．unless | B．if | C．although | D．Since |
【2013 甘肃白银】If our government ______ pay attention to the safety of food, our health _______ in danger.
| A．isn’t; is | B．doesn’t; will be | C．won’t; is | D．isn’t; will be |