在英语中既可以加to do也可以加doing单词答:加do let,make,can,have to ,going to ,why not,why don't sb.,see ,help,watch ,look at,notice,加doing start,begin,stop ,how about,finish,be good at,enjoy,have fun,do well in,practice,what about,have problems,thanks for,spend,without,be busy,can't stand,think about,see,...