Paul did a great job in the speech contest. He __ many times last week.
A. need have practised
B. might have practised
C. must have practised
D. could practised
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It wasn't right to me that such near neighbors ______ not know one another.
A. could
B. would
C. should
D. might
---Will you stay for lunch?---Sorry, I _______ . My brother is coming to see me.
A. mustn't
B. can't
C. needn't
D. won't
We have ordered too much food. I _______ eat any more.
A. can't
B. mustn't
C. needn't
D. shouldn't
All passengers ________ go through safety check before they take a plane.
A. can
B. may
C. must
D. could