Some aspects(方面) of a teacher’s job ______ be tiring, and teachers often ______ work at inconvenient hours.
#87172
A
can; must
B
may; can
C
can; have to
D
have to; must
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(2013·吉林长春三校高三调研)Days later, I tried to get my sister to tell me what was going on, but she ________ say anything.
#86573
A
mustn't
B
shouldn't
C
wouldn't
D
mightn't
What a pity! Considering his ability and experience, he ___________ it better.
#87501
A
need have done
B
must have done
C
can have done
D
might have done
— What great trouble I have solving this problem now！ —_____ my advice, you ________less trouble.
#90238
A
If you had taken, would have had
B
If you took, would have
C
If you had taken, would have
D
If you take, will have
Without your timely help, we ________ in big trouble that day.
#87130
A
would have been
B
would be
C
had been
D
were