把下面的定语从句和同位语从句改为不定式短语 Before the machines leave the factory, there is a series o
来源:网络
时间:
推荐文章

把下面的定语从句和同位语从句改为不定式短语
Before the machines leave the factory, there is a series of tests that must be passed.
试题答案
答案:
解析:Before the machines leave the factory, there is a series of tests to be passed/to pass. |