单项选择题

There is a real possibility that these animals could be frightened, ______ a sudden loud noise.

A. there being


B. was there
C. should there be

D. there having been
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单项选择题
If the whole operation ______ beforehand, a great deal of time and money would have been lost.
A. was not planned

B. has not been planned
C. had not been planned

D. were not planned
单项选择题
We don’t need air conditioning, ______.
A. nor can we afford it

B. and nor we can afford it
C. neither can afford it

D. and we can neither afford it
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