The clever boy made a hole in the wall,_______ he could see what was going on inside the house.A in which ,thatB on which,whatCthrough which,whatD at which,that,但我想问为什么不选A、D呢?in which不是在……里面的意思,at which不是在……里面或在……上面的意思吗请大家详细分析每个选项,不复制别人回答,
问题描述：
The clever boy made a hole in the wall,_______ he could see what was going on inside the house.
A in which ,that
B on which,what
Cthrough which,what
D at which,that
,但我想问为什么不选A、D呢?in which不是在……里面的意思,at which不是在……里面或在……上面的意思吗
请大家详细分析每个选项,不复制别人回答,
答