问题
选择题
| The clever boy made a hole in the wall, ______ he could see what it was going on inside the house. |
A. on which B. at which C. through which D. in which |
答案
答案：C
搜题请搜索小程序“爱下问搜题”
| The clever boy made a hole in the wall, ______ he could see what it was going on inside the house. |
A. on which B. at which C. through which D. in which |
答案：C