题目内容：

You ____ drive so fast,it is on a very dangerous road.
A：need not
B：don't have to
C：can't
D：shouldn't

优质解答

D
不应该开的这么快
need not没必要,与句意不符
don't have to也是没必要,与句意不符
can't不能,与句意也不符