题目内容
Tom's aunt wants to know ________ he has been up to so far; therefore, she
decided to send him an e-mail.
A. which B. why C. what D. how
C
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题目内容
Tom's aunt wants to know ________ he has been up to so far; therefore, she
decided to send him an e-mail.
A. which B. why C. what D. how
C