作业帮used to be
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 04:11:30
used to be
used to be
used to be
be used to do 被用来做某事be used to doing 习惯做某事（可用于过去或现在）used to do 过去常常做某事used to be 曾经是… 查一下字典就知道了,哈哈,
be used for be used to be used from区别
used to be
used to be翻译
I used to be
used to be
to be used
used to be
to be used
to be used
be used to
be used to
used to be
be used to
used to／be used to／be used for的区别
be used for doing,be used to do,be used as,be used in,be used to doing,used to
be used to与have used to
be used to中的used的词性
used to be used 后面加什么