—Why do you look so puzzled?—Oh，I ________ over a most difficult maths problem.
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A
thought
B
have thought
C
am thinking
D
think
推荐题目
We _______ in the office.
#102755
A
are not permitted smoke
B
are not permitted smoking
C
don’t permit smoking
D
don’t permit to smoke
Millions of pounds’ worth of damage _____ by a storm which swept across the north of England.
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A
has been caused
B
had been caused
C
will be caused
D
will have been caused
---The “No.1 Document” is designed to help the rural population increase their incomes.---I believe that peasants’ life _____ better and better.
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A
will have got
B
has got
C
gets
D
will be getting
The hotel wasn’t particularly good. But I ________in many worse hotels.
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A
was staying
B
stayed
C
would stay
D
had stayed
When we reached the stadium in a rush, the newly-elected major ____ his speech and the performance _______.
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A
have finished ; began
B
had just finished; was about to begin
C
had just finished; had begun
D
just finished; began