cqc与3c认证:用not until或until改写句子
来源:百度文库 编辑:中科新闻网 时间:2024/05/15 18:36:02
I know nothing about it until he told me.
I didn't know anything about it until he told me
I didn't know anything about it until he told me
.
I didn'tknow anything about it until he told me.