According to the factory safety rules, all accidents _____ be reported to the safety officer.
#62239
A
may
B
can
C
would
D
shall
推荐题目
—Guess what？I came first in that contest.—Great！You ________ a lot during the past two weeks.
#62488
A
must practise
B
should practise
C
should have practised
D
must have practised
We can make a fire ______ the room warm so that we can chat for a while.
#77591
A
to keep
B
keeping
C
keep
D
kept
-May we leave the classroom now?-No, you _______. You _______ to leave until the bell rings.
#74240
A
can't; are allowed
B
mustn't; aren't allowed
C
needn't; are allowed
D
needn't; aren't allowed
- Mr Jackson, __ we go rock climbing? m Yes, but you must use ropes.
#77373
A
must
B
should
C
need
D
can