have to do sth一般用在什么用在什么地方?

题目

have to do sth一般用在什么用在什么地方?

答案

have to do sth 表示“客观上不得不做某事”,must表示“主观上必须做某事”例：I must finish my homework today.我今天必须完成作业.I have to wash my clothes today because mother is out.我今天不得不洗衣服,因...