题目内容:
The repairperson could not find the specific problem ----- had caused the computer to crash.
A. how
B. whom
C. what
D. that
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析:
The repairperson could not find the specific problem ----- had caused the computer to crash.
A. how
B. whom
C. what
D. that