What a pity! I ______ in Hong Kong for three more days, but something urgent needed to be handled back home.
| A．must have stayed | B．could have stayed | C．may have stayed | D．needn’t have stayed |
I realize she can be very troublesome, but ____ I think you should apologize for being so angry with her.
| A．all the same | B．once in a while | C．in actual fact | D．all the time |
It doesn’t matter to me____ I miss my train, because there’s another one later.
| A．that | B．if | C．unless | D．when |
—I thought you wouldn’t mind.
—Well, as a matter of fact I ____; but you should have asked me first.
| A．did | B．do | C．won’t | D．don’t |
The time is not far away____modern communications will become widespread in China’s vast countryside.
| A．as | B．until | C．before | D．when |
Hardly ___________the door when he rushed into the office out of breath.
| A．I opened | B．did I open | C．I had opened | D．had I opened |