Question

①—May I smoke here? —No, you only do that in the smoking room.

A. can B. need C. mustn’t D. couldn’t 请问答案是什么 为什么 谢谢

Answer 1

这道题应该选A，其实他省略了完整的回答
完整的句子应该是No,
(you
mustn’t
)you
can
only
do
that
in
the
smoking
room.
但如果用may进行提问回答应该是这个样子的
may作可能讲时，The
teacher
may
be
in
the
house这样用can't
表否定；
may作可以讲时，
May
I
go
out
to
play
for
a
little
while
?这样用mustn't表绝对不行