造句

used to do sth.造句

used to do sth.造句



1、Perfomatives: are the sentences that did not state a fact or describe a state, and are not verifiable. But they are used by the speaker to do STH.(既不是陈述事实也不是描写状态,无法证实,但被说话者用来做事的。)

2、Sth . beused to do sth.(是固定词组,意思是用来做某事。)


used to do sth. 基本释义

used to do sth.