26．— Why are you still here? Everybody has gone to attend the lecture by the president. —

问题补充：

26．— Why are you still here? Everybody has gone to attend the lecture by the president.

— Oh, Iabout it!

A. wasn’t informed

B. hadn’t been informed

C. haven’t informed

D. didn’t inform

答案：

(答案→)A. wasn’t informed

B. hadn’t been informed

C. haven’t informed

D. didn’t inform

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