—Could I have a word with you，mum?—Oh，dear，if you _____．
#88016
A
can
B
must
C
may
D
should
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One of the requirements for the fire is that the material ________ to its burning temperature.
#89391
A
is heated
B
will be heated
C
would be heater
D
be heated
— Can I smoke in this hall?— No, you can’t. If you _____, please go to the smoking room.
#89862
A
should
B
might
C
can
D
must
I have written to him because he phoned me shortly afterwards.
#88224
A
ought to
B
must
C
couldn’t
D
needn’t
He said he didn’t regret telling the truth but felt that he ______ it differently.
#87843
A
could have expressed
B
could express
C
must have expressed
D
would express
－Is John coming by train?－He __________, but he can’t. All the trains have been cancelled because of the snow.
#90408
A
may
B
will
C
must
D
should