______ help me, I had to do it all alone.
A. There is no one to
B. There being no one to
C. Being no one
D. With no one
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I suppose you are not serious, ______
A. do I
B. don"t you
C. are you
D. aren"t you
Only ______ making investigations ______ have the right to speak.
A. before; can we
B. after; we can
C. before; we can
D. after; can we
The old man preferred to stay at home ______ to the concert.
A. than to go
B. to go
C. rather than going
D. rather than go
Mrs. White became a teacher in 1985. She ______ for twenty years by next summer.
A. will teach
B. would have taught
C. has been teaching
D. will have been teaching
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