问题标题:
【Wedidn'tfindSmithattendingthelecture.--Wedidn'tfindSmithattendingthelecture.--Noone_____himabout_____alecturethefollowingday.A.told;theretobeB.hadtold;theretobeC.hadtold;therebeing】
问题描述:

Wedidn'tfindSmithattendingthelecture.

--Wedidn'tfindSmithattendingthelecture.

--Noone_____himabout_____alecturethefollowingday.

A.told;theretobeB.hadtold;theretobeC.hadtold;therebeing

韩家德回答:
  wedidn'tfind已经是过去式.   而“没有人告诉他……”是在我们找不到他之前发生的事情   所以过去的过去,用过去完成式,排除A.   tellsbaboutdoingsth   所以后面选being
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