Water ____ be changed into vapour but it ____ be heated to its boiling point .
#89755
A
may ; can
B
can ; must
C
may ; needn''t
D
must ; may
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---I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.--- Oh, it ____ my uncle. He was in my room then.
#87747
A
must have been
B
should have been
C
must be
D
should be
---I’m sorry. I _________ at you the other day.---Forget it. It was a bit out of control myself.
#86373
A
shouldn’t shout
B
shouldn’t have shouted
C
mustn’t shout
D
mustn’t have shouted
--Must we hand in our homework now?---No, you ___. You ___ hand them in before Friday.
#88933
A
mustn’t , can
B
needn’t, can
C
can't , can
D
mustn’t, must
The headmaster suggested the problems referred __________ discussed immediately.
#88495
A
should be
B
to be
C
be
D
to being
The manager demanded that the workers _______ extra hours to complete the task ahead of time.
#86858
A
work
B
were working
C
worked
D
would work