问题标题:
【Thereweresomebirdsinthetreethismorning.(改成否定句)】
问题描述:

Thereweresomebirdsinthetreethismorning.(改成否定句)

杜松回答:
  Thereweresomebirdsinthetreethismorning.(改成否定句)   Therewerenotanybirdsinthetreethismorning   或者   Thereweren'tanybirdsinthetreethismorning   注意:some要变成any
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