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I ______ tell you with certainty that he won’t be able to finish it before the deadline. 
#63667
A
will
B
must
C
can
D
may
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--It is really fun to hike and I often go hiking in the forest.--But hiking alone in the forest ______ be very dangerous.
#63596
A
can
B
must
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--- May I smoke here? --- If you       , choose a seat in the smoking section.
#63523
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should
B
could
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must
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Must I clean my rabbit’s hutch every day? - No, you __________.
#76783
A
mustn’t
B
needn’t
C
can’t
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don’t
 ------ May I smoke here?------ If you____, that's the smoking section over there.
#63312
A
should
B
could
C
may
D
must
Whenever my grandmother calls just to chat with me,I drop everything and enjoy the moment,knowing these times__________pass.
#62578
A
call
B
must
C
shall
D
might
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