动词加动词时,后一个动词要加_to或ing_,叫不定式或ing分词
want to do hope to do expect to do
enjoy doing dislike doing hate doing
动词加动词时,后一个动词要加_______,叫______
动词加动词时,后一个动词要加_to或ing_,叫不定式或ing分词
want to do hope to do expect to do
enjoy doing dislike doing hate doing