2. 外语
  3. Nancy is supposed to ______________ (做完化学实验)at least two weeks ago.

Nancy is supposed to ______________ (做完化学实验)at least two weeks ago.

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问题 Nancy is supposed to ______________ (做完化学实验)at least two weeks ago.
选项
答案have finished her/the chemical experiment
解析 本题考查①完成时态；②chemical experiment表示“化学实验”。
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大学英语六级

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