---Don't make any noise in the library.
---_______.
A .OK, I will B. Yes, I do C .Sorry, I won't
【2013河北】The beginning of the movie was boring, _ the end was amazing!
| A．but | B．and | C．so | D．or |
【2013河南】—George, how can you prove the earth is round?
—I can't, sir. ______ I never said it was.
| A．Then | B．However | C．Besides | D．Instead |
【2013广西玉林】—Please give Alice the story book ________ you see her.
—All right.
| A．unless | B．or | C．but | D．if |
【2013浙江杭州】I think he’s been drinking, _________ I’m not completely sure.
| A．if | B．though | C．until | D．as |
【2013四川雅安】Be quick, we'll be late for the meeting.
| A．and | B．but | C．so | D．or |