I want to see the dentist,please!和 I must see the dantist,now.第一句为什么要加to?
问题描述：
I want to see the dentist,please!和 I must see the dantist,now.第一句为什么要加to?
答
want to want后必须加to
答
want to do
must do
答
I want and I must is different.... I want 是你想要....I must 是你一定要
答
want to do sth 这是固定搭配
must是情态动词 不能加不定式
答
want to 固定搭配
想要的意思
我要看牙医 我必须现在看牙医
答
must是情态动词，之后直接跟宾语，want为实义动词，之后接动词不定式，因此加to