A-A+
The question of ______ the traffic accident ha
问题详情
The question of ______ the traffic accident happened hasn"t been answered yet, though the police have made on-the-spot investigation.
A．that
B．whether
C．how
D．whenever
参考答案
正确答案：C
解析：此句中，由关系词引导的从句作介词of的宾语；两者一起构成的介词短语又用来修饰前面的名词“the question”。从句意上我们可以判断出，空白处缺少一个表示方式的关系副词how。选项whenever意思是“无论何时，随时”。
