来源:学生作业帮 编辑:搜搜考试网作业帮 分类:英语作业 时间:2024/08/18 22:39:22
请教道英语语法的问题.
3.It was ______ the policeman came ______ the parents knew what had happened to their son.(选C)
A.before...as B.until...when C.not until...that D.until...that
句子整体上是一个强调句型:it is.(强调部分)that...
强调部分是一个not until 句型