before与ago的选词填空have you been to London---,Tony?yas,I went two year----.
问题描述:
before与ago的选词填空
have you been to London---,Tony?
yas,I went two year----.
答
before 以前,介词
ago 用在时间后,表示多少时间以前。
答
before
ago
答
第一个before
第二个ago
before多用于完成时
ago用于一般过去式