In China's countryside, villagers often have the same family name, but ________ not be closely related.
#62201
A
need
B
shall
C
must
D
may
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—I wonder why Mr Green hasn't showed up at the meeting yet.—I'm not sure,but he________in a traffic jam driving here.
#62838
A
could be stuck
B
might have been stuck
C
might be stuck
D
must have been stuck
The door ________ open, no matter how hard she pushed. 
#62946
A
shouldn’t
B
couldn’t
C
wouldn’t
D
mightn’t
(2013·四川省都江堰市二模)—Mike, I can't find my watch anywhere.—You ________ it while working out.
#62422
A
may have lost
B
could have lost
C
would have lost
D
should have lost