问题
选择题
Had you joined the chat room ten minutes ago，you would have known what we
about then．
A．had talked
B．have talked
C．talk
D．were talking
答案
答案：D
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Had you joined the chat room ten minutes ago，you would have known what we
about then．
A．had talked
B．have talked
C．talk
D．were talking
答案：D