What a great _____ do you think a word of praise from the teacher will have on pupils?
A. result B. account C. effect D. cause
He was told that it would be at least three more months _____ he could recover and return to work.
A. when B. before C. since D. that
It is not who is right but what is right ____ is of importance.
A. which B. it C. that D. this
I _____ his telephone number. Had I known it, I would have rung him up.
A. don’t known B. didn’t know
C. hadn’t known D. haven’t known
--- Don’t look down upon Bob. He has his own advantages.
--- Oh, yes. ____ others are weak , he is strong.
A. When B. Where C. While D. If
The new machine, as is reported in the local newspaper, will work twice as fast, _____ greatly reducing costs.
A. thus B. anyhow C. yet D. even
