We _______ talk loudly when we see the sign “ Be quiet ”on the right.
#78159
A
must
B
mustn’t
C
need
D
needn’t
推荐题目
In case you ______ still have anything to offer, please contact our manager while he is available．
#62228
A
shall
B
would
C
should
D
will
--- Don't worry. I've just sent an ambulance to you. They ________ be there any second.
#63010
A
could
B
might
C
would
D
should
— Must I go to medical school and be a doctor like you，Dad?— No，you__________，son．You’re free to make your own decision．
#75418
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
The weather turned out to be fine yesterday. I _______ have taken the trouble to carry my umbrella with me.
#63182
A
should
B
could
C
needn’t
D
mustn’t