_______ is known to us all that the old scientist, for _______ life was hard in the past, still works hard in his eighties.
A. It; whom B. As; whose C. As; whom D. It; whose
The wounded soldier died _____I had a chance to know his name and family.
A. after B. while C. until D. before
They came back from their long walk and went into bed, .
A．tiredly but relaxing B．tired but relaxing
C．tiredly but relaxed D．tired but relaxed
-----Must I go there right now?
-----No, you _____. You ____go there before supper.
A mustn’t , need B. needn’t, may C. can’t ,need D. won’t, can
We laugh at jokes，but seldom about how they work．
A．we think B．think we C．we do think D．do we think
_____ playing dumb with teachers. They know very well their students.
A. It’s no use B. There is no doubt C. It’s no wonder D. There is no need
