The pollution problem here seems to get more and more serious .Something ____with it .
#76542
A
has done
B
must be done
C
is doing
D
was done
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It’s nearly eight o’clock. I must hang up and get down to work. My boss________ be here at any moment.
#63113
A
should
B
must
C
could
D
would
—Why，I didn’t get you on the phone.—We ________football on the playground when you phoned.
#62277
A
must be playing
B
must play
C
must have played
D
must have been playing
—Look at the man in the classroom! Is he Mr. White?—No, it __________be him. He’s eating in the dining hall.
#77773
A
can’t
B
mustn’t
C
may not
D
needn’t
- You talk so much about London. You ________have been there. - Yeah, I went sightseeing on a tour last summer.
#62580
A
must
B
can
C
will
D
need
A hot balloon blew up in Egypt. There ________ something wrong with the quality of it.
#62333
A
may have been
B
must be
C
need have been
D
might be