______ the door when a gust of wind blew the candle out.
A. He had no sooner opened
B. Hardly had he opened
C. Scarcely did he opened
D. No sooner did he open
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It seems oil()from this pipe for some time. We'll have to take machine apart to put it right.
A. had leaked
B. is leaking
C. leaked
D. has been leaking
Strenuous efforts have been made to ______ government expenses to a desired level.
A. cut off
B. cut back
C. cut down
D. cut short
Rejecting the urging of his physician father to study medicine, Hawking chose to ______ on math and theoretical physics.
A. impose
B. center
C. overwork
D. concentrate
The old tower must be saved, ______ the cost.
A. however
B. whatever
C. whichever
D. wherever