问题描述：
You should tell your father______.
A.what you are reading B.what are you reading
C.what you reading D.what did you read
为什么选a 详解这个语法.
A.what you are reading B.what are you reading
C.what you reading D.what did you read
为什么选a 详解这个语法.
问题解答：
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