It has been announced that all the students ____ put on masks before going to school in case they are infected with SARS virus.
#62892
A
shall
B
will
C
need
D
may
推荐题目
— Simon, when are we going to have a class meeting this week?— Sorry. Ask our monitor, please. He know.
#75620
A
may
B
can
C
will
D
shall
Some aspects of a pilot’s job__________ be boring, and pilots often ________ work at inconvenient hours．
#63540
A
can; have to
B
may; can
C
have to; may
D
ought to; must
-There is someone knocking at the door.- It ______ be Jimmy, he has gone to ShangHai .
#75858
A
needn’t
B
mustn’t
C
can’t
D
may not
_Could I go to the movie this Sunday, Dad? _ Yes, you_____. But you ______ come back before nine.
#76263
A
should, can
B
must ,have to
C
can , have to
D
need, must