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--- You should have thanked her before you left. --- I meant , but when I was le

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--- You should have thanked her before you left. --- I meant , but when I was le

 --- You should have thanked her before you left.

   --- I meant ______, but when I was leaving, I couldn’t find her anywhere.

  A. to do          B. to          C. doing        D. doing so

试题答案

B