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
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He _____ have fallen asleep last night because he didn’t hear the phone call.
#63261
A
may
B
should
C
can
D
must
You ______ to the party if you’re so busy.
#76821
A
don’t need come
B
not need coming
C
needn’t come
D
need not to come
You __________ buy a gift, but you can if you want to.
#63027
A
must
B
mustn’t
C
have to
D
don’t have to