(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
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Whale beachings（搁浅）_______ be caused by factors such as illness, or disorientation（迷失方向）caused by extra noise in the oceans, ______ shipping or oil and gas drilling.
#62978
A
might; from
B
will; by
C
should; in
D
shall; on
—Must I clean my room now, Mum?—_______. You can do it tomorrow.
#75944
A
No, you needn’t
B
No, you mustn’t
C
Yes, you need
D
Yes, you must
---I have sore eyes. ---You _____ play computer games too long.
#74085
A
must
B
shouldn’t
C
had better
D
don’t
－Are people around you used to _______things online?－Yes. It’s much easier, and also cheaper.
#77737
A
order
B
orders
C
ordered
D
ordering
. --- I'm sorry. I ____________ the bike to you yesterday. But I was too busy at that time. --- Never mind.
#63320
A
should return
B
should have returned
C
must return
D
may have returned