It’s too bad that I failed in the math exam. If only I ______ hard at it!
| A．worked | B．had worked | C．has worked | D．would work |
Some weak bridge may not ___ in an earthquake.
A,stay up B. fall down C. fell down D. fell off
Do remember or wash the vegetables ___.
| A．as clean as possible | B．as cleanly as possible | C．possible as clean as | D．possible as cleanly as |
He dropped the ___ and broke it.
A. coffee cup B.coffee’s cup C cup of coffee D. cup for coffee
The dam is 3800 ___. It is a 980 ___ dam at the base.
| A．metres long, metres wide | B．metres-long, metres wide | C．metres long, metre-wide |
| D．metre—long, metres wide |
I don't think it's a good idea, ___ ?
| A．is it | B．isn’t it | C．do I | D．don't I |