By the time he realizes he ____into a trap, it’ll be too late for him to do anything about it.
A. walks B. walked C. has walked D. had walked
If their marketing plans succeed, they ____ their sales by 20 percent.
A. will increase B. have been increasing C. have increased D. would be increasing
If the weather had been better, we could have had a picnic. But it ____ all day.
A. rained B. rains C. has rained D. is raining
The wet weather will continue tomorrow when a cold front ______ to arrive.
A. is expected B. is expecting C. expects D. will be expected
—Have you known Dr. Jackson for a long time?
—Yes, since she________ the Chinese Society.
A. has joined B. joins C. had joined D. joined
—Have you got any job offers?
—No. I ______.
A. waited B. had been waiting C. have waited D. am waiting
