My brother and I really have no idea as to ______ about this sudden change of the situation.

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问题 My brother and I really have no idea as to ______ about this sudden change of the situation.

选项 A、what to do
B、to do what
C、how to do
D、how can I do

答案A

解析介词后面疑问词的跟法为：介词+疑问词+不定式。或者是：介词+疑问词+主语+谓语动词+其他成分。注意：见第29题题解。

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公共英语二级笔试

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