(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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My sister met him in the hospital yesterday afternoon, so he _________ your lecture.
#62533
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended
_____ people in the world are sending are receiving e-mails every day.
#77031
A
Million of
B
Many millions of
C
Several millions’
D
Several millions
------Shall we meet at the station at 8 a.m? -------In fact we________.The train _______until 10a.m.
#74764
A
mustn’t ;doesn’t leave
B
mustn’t ;leaves
C
needn’t ;won’t leave
D
needn’t;will leave