——Can I walk across the road now, mum?
——No, you_______. You have to wait until the light turns green.
A.couldn't | B.shouldn't | C.mustn't | D.needn't |
——Can I walk across the road now, mum?
——No, you_______. You have to wait until the light turns green.
A.couldn't | B.shouldn't | C.mustn't | D.needn't |