用need to do sth.和agree to do sth.造句
问题描述：
用need to do sth.和agree to do sth.造句
答
i need to do homework
he agreed to help me do my homework.
答
I need to tell him the truth==I must tell him the truth.
I have agreed to help him,but I won't start to help until tomorrow.
答
先说need to do sthneed可以作情态动词也可以作普通动词.当它为情态动词的时候,肯定形式就是need do sth.当它是普通动词时候,肯定形式是need to do sth.由此,此处为动词形式.例句：I need to do my homework.agree t...