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 to wear his school uniform every day?—No, he ______________.
#75548
A
Must; mustn't
B
Can; can't
C
Does; doesn't have to
D
Do; don't have
---Thank you for inviting us.Tell your wife that she gave us a perfect party.---I______. See you later.
#62368
A
must
B
should
C
will
D
can
Mary _______ her mother with the housework, but she didn’t.
#63072
A
must have helped
B
ought to have helped
C
must help
D
should help