问题描述：
1.I said nothing about it because his wife was there. I said nothing about it ( )there. 请老师详细解答，解释时请把语法写具体，说明通俗易懂。O(∩_∩)O谢谢！
问题解答：
我来补答
解题思路： 弄清because 与because of 的用法是解题的关键
解题过程：
I said nothing about it ( because of his wife being ) there .
解析：because与 because of 用法
从词性上看
because 是连词，其后接句子；because of 是复合介词，其后接名词、代词、动名词、what 从句等。如：
I didn’t buy it because it was too expensive. 我没有买是因为它太贵了。
He is here because of you (that). 他为你(那事)而来这里。
He lost his job because of his age. 由于年龄关系他失去了工作。
We said nothing about it, because of his wife’s being there. 因为他妻子在那儿，我们对此只字未提。
He knew she was crying because of what he had said. 他知道她哭是因为他说的话。
注意：because of 之后可接 what 从句，但不能接 that 从句或没有引导词的句子。如：
他因病未来。
误：He didn’t come because of he was ill.
误：He didn’t come because of that he was ill.
正：He didn’t come because he was ill.
正：He didn’t come because of his illness.
比较以下同义句：
他离开了这家公司，是因为老板在会上讲的话。
正：He left the company because of what the boss said at the meeting
