The plan _________ just because people were unwilling to cooperate (合作).
| A．broke down | B．pulled down | C．turned down | D．put down |
Anyone be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”
| A．must | B．will |
| C．can | D．should |
—Why not find a new job?
—Why should I? I _____ as much, but I like what I'm doing.
| A．didn't earn | B．don't earn |
| C．hadn't earned | D．haven’t earned |
Mom, don’t you think it's OK to play once in a while it doesn’t affect my studies?
| A．even if | B．unless |
| C．so that | D．as long as |
The scientist spent years alone in the forest, ______ by eating wild fruit and small animals.
| A．surviving | B．survived |
| C．to survive | D．having survived |
—Wow, you have a really good voice. I_____ you were good at singing.
—Thank you.
| A．haven't known | B．hadn't known |
| C．didn't know | D．don't know |