(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
推荐题目
—I called you at 9 last night,but no one answered.—Sorry,I ________ sleeping.I went to bed very early.
#62284
A
need have been
B
would have been
C
must have been
D
should have been
–– ________ I come back before 6 o’clock?–– No, you _______ . But you ______ be back later than 7 o’clock.
#75632
A
Need; must; must
B
May; mustn’t; can’t
C
Can; can’t; can’t
D
Must; needn’t; can’t
(2013·江西九江二模)If you won't do as I tell you, you ________ get the chance to be promoted because the competition is just too fierce.
#62419
A
couldn't
B
mustn't
C
shouldn't
D
shan't
— Mum, must I wash the dishes right now?— No, you ______.
#75953
A
shouldn’t
B
wouldn’t
C
mustn’t
D
needn’t