—Where is Bob? I cannot find him anywhere.—He have been off long. I heard him make a call just now.
#90189
A
shouldn’t
B
can’t
C
mustn’t
D
needn’t
推荐题目
Look at this! It’s broken now! You __________ have been careful!
#89222
A
could
B
must
C
would
D
should
--- I saw Nancy on the way home yesterday.--- It be her. She’s gone to America for further study.
#87630
A
mustn’t
B
can’t
C
won’t
D
needn’t
The professor ________at 8 o’clock，but he has not shown up yet，which worries all of us.
#86762
A
was supposed to arrive
B
must have arrived
C
might have arrived
D
was supposed arriving
–Where are the students? How could they keep us waiting for so long? –They started an hour ago and they ____ be here in fifteen minutes, I think.
#87940
A
can
B
would
C
should
D
must
(2013·齐鲁名校一模)To make the most of your time, live every moment as if it________ your last.
#86540
A
is
B
would be
C
were
D
has been