Emergency line operators _______ always stay calm and make sure that they get all the information they need to send help.
#87182
A
can
B
would
C
must
D
might
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—I’ m sorry. I ______ at you the other day.---Forget it. I was a bit out of control myself.
#87288
A
shouldn’t shout
B
shouldn’t have shouted
C
mustn’t shout
D
mustn’t have shouted
There was a half smile on his face which suggested that he＿＿＿＿happy to have given his life for his country.
#89954
A
was
B
should be
C
would be
D
were
The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
#90173
A
shan’t
B
can’t
C
needn’t
D
mustn’t
－Mom’s gift? She _______ have chosen a better one for me.－She must be very happy to know it.
#87941
A
should
B
might
C
couldn’t
D
mustn’t