(2013·浙江金华二模)A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.
#62415
A
should have been saved
B
must have been saved
C
need have been saved
D
could have been saved
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—Are you coming to the English evening?—I’m not sure. I ________ go to the concert instead.
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The boss ______ the worker how to do it, or the accident couldn’t have happened.
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---Must I do the work today? ---No, you _______. You may do it tomorrow.
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A
can’t
B
mustn’t
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