有一题是这样的
请问,合并后为什么不用加been?
44. John has been busy at work.
John is exhausted(疲惫). (so..that合并)
=>John has so busy at work that he is exhausted.

我也觉得你说的才是对的...John has been so busy at work that ....没有been的句子才是错的。

谢囉~~可能是我笔漏抄,或老师漏了吧!^^||