The researchers have been studying on this project ___2008.
A. since
B. after
C. fpr
D. before
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Deeply ___by the speech ,he volunteered to help the disabled people.
A. being moved
B. moving
C. moved
D. had been moved
If he ___my advice ,he would not have committed such a big mistake in expanding business.
A. had taken
B. have taken
C. took
D. would take
All meetings ___because of the general manager's absence, and the staff had to wait until next week.__
A. having been canceled
B. had been canceled
C. having canceled
D. were canceled
____the bad weather ,the airplane could have arrived at the destination on time.
A. In case
B. In case of
C. Because of
D. But for