问题

Actions ______ be taken to stop H7N9 from spreading again.
A:must
B:may
C:can’t
D:needn’t ;
B:may
C:can’t
D:needn’t ;
正确答案是:
同类题型
Word came from Chile at least 300 people were killed in the 8.8-magnitude earthquake.[ ]
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My father agreed ________ me a new bike.
Excuse me. Has the plane arrived — I’m so sorry, Mr. Green. I’m afraid you have to wait for hour.