问题
选择题
The clever boy made a hole in the wall, ____ he could see ____ was going on inside the house.
A．which;what
B．throughwhich;what
C．throughthat;what
D．what;that
答案
答案：B
考查定语从句及宾语从句。第一空先行词为 a hole，通过洞应用through which，第二空，see 后为宾语从句，从句中缺少主语，所以用what，句意：这个聪明的男孩在墙上做了一个洞，通过洞他能看到房子里面所发生的事情。所以选B。