start doing 与start to do 的区别?
问题描述：
start doing 与start to do 的区别?
答
begin / start to do sth begin / start doing sth.1) 谈及一项长期活动或开始一种习惯时,使用doing.How old were you when you first started playing the piano?你几岁时开始弹钢琴?2) begin,start用进行时时,后面...