(2012·浙江高考)Had they known what was coming next, they ________ second thoughts.
#79773
A
may have
B
could have
C
must have had
D
might have had
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Don’t be rude to your father.Never in his life in that way.
#84330
A
has he spoken to
B
he has spoken to
C
has he been spoken to
D
he has been spoken to
Two years ago I broke my arm ____ football.
#81492
A
when playing
B
while played
C
played
D
having played
Some of you may have finished unit one. _____ , you can go on to unit two.
#84634
A
If you may
B
If you do
C
If not
D
If so
These problems，______ will seriously affect the growth of teenagers and even the nation's future.
#84103
A
not if solved properly
B
if solved properly
C
not if properly solved
D
if not solved properly
What we have to admit is that never in the past thirty years __________ so greatly as today.
#80256
A
has China changed
B
China has changed
C
did China change
D
China had changed