The repairperson could not find the specific problem ___________ had caused the computer to crash.
2023-05-26
A.how
B.whom
C.what
D.that
参考答案:D
B.whom
C.what
D.that
参考答案:D
通过分析句子结构,空格前为主语+动词+宾语的结构,因此空格以后的都必须为修饰先行词problem的关系代词从句。
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