I can't stop playing computer games For your health my boy i'afra_英语解答

I can't stop playing computer games For your health my boy i'afraid you_____
A.can B.may C.must D.have to
问下为什么不用must而用have to

人气：348 ℃　时间：2019-10-19 13:38:46

解答

have to客观条件要求必须做某事
must主观认为必须做某事】
身体状况是客观条件