(2013·安徽师大附中高三七模)Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.
#62449
A
shall
B
must
C
may
D
will
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--- This must be a footprint of a tiger. --- It ____ be. A tiger’s should be much larger and deeper than this.
#62711
A
mustn’t
B
won’t
C
shan’t
D
can’t
--Who’s singing in the next room? Is it Lucy?---It be her. She has gone to New York.
#75482
A
can’t
B
must
C
shouldn’t
D
can
---Who is the tallest boy? ---It ______ be John.. John is of medium height.
#75022
A
must
B
needn’t
C
might
D
can’t
She _____ your birthday party, but she had to look after her mother in hospital．
#63325
A
should attend
B
ought to have attended
C
can have attended
D
must have attended