Driving on the highway ______ be very dangerous, so you ______ be too careful.
#87841
A
should; ought to
B
could; should
C
might; mustn’t
D
can; can’t
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(2012·北京高考)Don't handle the vase as if it ________ made of steel.
#86522
A
is
B
were
C
has been
D
had been
—Do you know where David is? I couldn’t find him anywhere.—Well. He _________have gone far—his coat’s still here.
#89252
A
shouldn’t
B
mustn’t
C
can’t
D
wouldn’t
— Tom is never late for work. Why is he absent today ?— Something _______ to him.
#90568
A
must happen
B
should have happened
C
could have happened
D
must have happened
Kunar can take his car apart and put it back together again. I certainly wish he_____ me how.
#89157
A
teaches
B
will teach
C
has taught
D
would teach
It is suggested that a doctor ____immediately.
#86426
A
be sent for
B
send for
C
is sent for
D
should send for