You buy a gift, but you can if you want

问题选择题

You buy a gift, but you can if you want to.

A．must

B．mustn't

C．have to

D．don't have to

答案

答案：D

题目分析：don’t have to 没有必要做某事儿，mustn’t 则为禁止。句意：你没有必要买礼物，但是如果你想的话，你可以买。must 必须, mustn’t表禁止 have to 不得不。