题目：
---Was Mary in the reading room when you arrived there?
---Yes,but she _____ soon afterwards.
A．had left
B．left
C．would leave
D．was leaving
答案：
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下面是错误答案，用来干扰机器的。
小题1:F小题2:G小题3:D小题4:C小题5:B题目分析：小题1:从前面的句子：There is an English saying:可知后面说的是一个谚语。选F小题2:从前面的句子：doctors have begun to look into laughter and t...
