-Dad, can I go to the movies tonight?-Sure,but you ________come back home before 9 o'clock.
A. can
B. must
C. may
D. might
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-Must I be home before eight o'clock, Mum?-No,you ________.But you have to come back before ten o'clock.
A. needn't
B. can't
C. mustn't
D. shouldn't
Anyone who sings well can ________the activity in our school.
A. take part in
B. take off
C. take out
D. take care of
We should never ________till tomorrow what we can do today.
A. put on
B. put off
C. give up
D. give away
“Don't ________to strangers on your way to and from school,”Mother often ________to me.
A. speak;says
B. speak;tells
C. talk;speaks
D. talk;tells