he used to run fast.used to 是什么词性,成分?
he used to run fast.used to 是什么词性,成分?
used to是什么词性?
used to do sth和be used to doing sth中的used是什么词性?
be used to中的used的词性
used to do的used的词性
一道英语单项选择:liu xiang used to run very fast,() Yes,you are righ
he used to be a teacher 分析成分
例句Do they live there?No,they used to used to 做什么成分什么词性换成什么词也
Used to这个词组中used的词性
He used to go swimming.
He used to be short.
He used to go fishing