问题补充:
You go far if you need help with your homework.
A. don’t need
B. don’t have to
C. needn’t to
D. don’t have
答案:
A. don’t need
(答案→)B. don’t have to
C. needn’t to
D. don’t have
解析:“have to do sth.”意为:“必须做某事”;“have”是一个实义动词,它的否定句在它前面直接加“don’t”就可以了。