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
---Mum, I hurt my leg when I climbed the tree. --- You ___ that tall tree. I’ve told you many times.
#62682
A
mustn’t have climbed
B
shouldn’t have climbed
C
couldn’t climb
D
may not climb