It is known that water is not ___ endless resource , nor ____ that can be made once more.
| A．the;/ | B．an; one | C．an ;that | D．/;one |
It’s so nice to hear from her again．______,we last met more than thirty years ago．
| A．What’s more | B．That’s to say |
| C．In other words | D．Believe it or not |
— We are sorry we can’t stay with you．
— ________．
| A．No, sorry at all | B．I don’t think so |
| C．Don’t think so | D．That’s all right |
—Why did you cancel your trip to the New York?
—We were just about to leave_______ it started to snow．
| A．when | B．before | C．after | D．since |
Dr．Frank failed many times but he finally _______ to find a successful way to solve the problem．
| A．broke off | B．broke up | C．broke down | D．broke through |
—Are you pleased with what he has done?
—Not a bit ．It couldn’t be ________．
| A．so bad | B．much better |
| C．any worse | D．best |