Question

---Please write to me when you have time.

---Sure. But ________ is your e-mail address?

1. A.
   what
2. B.
   where
3. C.
   which
4. D.
   how

Answer 1

A
該題考查疑問詞用法．根據(jù)會話的語境，答話者在詢問對方的電子郵件地址是什么，應用疑問代詞作表語，有A、C供選擇．what不受范圍限制，which受范圍限制．空白所在句子中疑問代詞的用法屬于前者．
試比較：
What's your name?你叫什么名字？
Which do you like better, physics or chemistry?物理和化學，你最喜歡哪門功課？