—Must I learn all these words by heart? —No, you ______. It’ll be fine if you copy them in your exercise books. 
#78070
A
needn’t
B
can’t
C
shouldn’t
D
mustn’t
推荐题目
I will come _____ I don’t change my mind. 
#75176
A
unless
B
if
C
because
D
though
Not having work out the problem,          leave the office.
#63683
A
so he was not allowed to
B
and he didn’t want to
C
the teacher couldn’t make him
D
he couldn’t free himself to