—Do you know ______ he is going to stay in Shenzhen?

—Sorry, I don’t know. Maybe a few weeks, but I’m not sure.


  1. A.
    when
  2. B.
    how long
  3. C.
    what time
  4. D.
    how soon
B
考查疑問詞的用法。根據(jù)a few weeks可推測所問的是時(shí)間段，用how long 提問。
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