—Oh my god! You__ wear slippers to attend the conference． —I'm sorry I forgot there is a conference．
#89857
A
must
B
can
C
should
D
shall
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Tom’s boss told Tome that if he worked hard, he _____ have a rise.
#87797
A
may
B
ought to
C
can
D
shall
I told Sally how to get here, but perhaps I ____ for her.
#89352
A
had to write it out
B
must have written it out
C
should have written it out
D
ought to write it out
I have passed my examination easily, but I made too many stupid mistakes.
#87435
A
must
B
will
C
shall
D
could
—What will you do next Sunday? —Maybe do some shopping, for I ______go to school on Sunday．
#87920
A
mustn’t
B
shouldn’t
C
don’t have to
D
had better not