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本讲为2006年下半年新的教学内容，请对照教材，练习册，语法书听录音！
    doing doing        being done
  having done having been done
  动名词
  Doing homework is students’ duty.
  Doing her homework, she found she has run out of ink.
  Immediately, he left here.
  China is a developing country.
  Having done
  Not having done
  For n. / pron. __ (do)
  My __ (do)
  Mary’s __ (do)
  Want to be watered
  Need
  The bike needs repairing.
  The bike needs to be repaired.
  The holidays _being_ (be) over, they began to work again.
  Weather __ (permit), the football match will be played on Weds.

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