Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.
#74948
A
mustn’t
B
ought not to
C
needn’t
D
don’t have to
推荐题目
You needn’t have come in person --- a letter _____enough.
#63450
A
would be
B
is
C
would have been
D
was
It’s time _____ class. You must _____ the classroom.
#75805
A
to; to go
B
for; go to
C
to; to go
D
for; to go