I'd rather they ___ right now.
| A．leave | B．didn't leave | C．don't leave | D．won't leave |
We congratulated him ______ his getting a gold medal.That is to say: we offered him our congratulations ______ his getting a gold medal.
| A．at;on | B．of;on | C．on;for | D．on;on |
You have made a few mistakes in your composition but ______ you have done well.
| A．as a whole | B．on the whole |
| C．on the other hand | D．generally speaking |
In the experiment you should keep a watchful eye ______ the developments and record every detail.
| A．in | B．at | C．for | D．on |
He said ______ couldn’t he work out the problem but his teacher didn’t know how to do it.
| A．though | B．never | C．hardly | D．not only |
The problem ______ many children,especially girls,have ______ school is getting more and more serious.
| A．which;got out of | B．that;dropped out of |
| C．that;fallen out of | D．which;run out of |