为什么,有的用 动词+to do sth 有的用 动词+do sth答:1.跟不定式(to do)作宾语的动词: want, wish, hope, manage, pretend, decide, learn, agree, expect, demand, long, ask, care, choose, dare, fail, offer, plan, prepare, promise, refuse, desire, happen, appear, intend, would like to, be said to等 2.跟do sth的情况:(1...