He finish his homework before 12 o’clock.A. haven’t toB. don’t have toC. hasn’t toD. doesn

问题补充：

He finish his homework before 12 o’clock.

A. haven’t to

B. don’t have to

C. hasn’t to

D. doesn’t have to

答案：

A. haven’t to

B. don’t have to

C. hasn’t to

(答案→)D. doesn’t have to

解析：考查固定短语。没有必要做某事，don’t have to do sth /needn’t do sth.故选D。