UC知道英语单项选择的问题
来源：百度知道 编辑：UC知道 时间：2024/05/21 10:58:34
1.___ in the regulations that you should not tell others the password.
A What requires B It is required
为什么选B不选A
2.His attention was suddenly caught by a small box which___placed under the bed
A had been B was being
为什么选A不选B
A What requires B It is required
为什么选B不选A
2.His attention was suddenly caught by a small box which___placed under the bed
A had been B was being
为什么选A不选B
1.如果用what引导，那么句子就缺乏主语了。
这是一个固定句型，that引导的从句是整个句子的真正主语，但是从句子的形式来看是没有主语的，所以要在句首加上it is 充当形式主语。
2.be caoutht attention 是一个瞬间发生的动作，所以不能用being placed正在发生的动作搭配。
因为A是对的 就这么简单