If you are not interested in what I’m doing, you ________ leave.
A. may better
B. may very much
C. may just as well
D. may be well to
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You __________ that office building after dark.
A. have no business for entrance
B. have no business entering
C. have not the business to enter
D. do not have business to entering
It’s necessary that the president __________ in time to attend the meeting.
A. came
B. will come
C. come
D. comes
This test is for students __________ native language is not English.
A. whose
B. that
C. of whom
D. which
__________ he retires, Prof. Baker will have taught in the university for almost forty years.
A. By this time
B. At the time
C. At the same time
D. By the time