问题

are you still here Everybody has gone to attend the lecture by the president.-Oh, I ____ about it!
A:didn’t inform
B:hadn’t been informed
C:haven’t informed
D:wasn’t informed;
B:hadn’t been informed
C:haven’t informed
D:wasn’t informed;
正确答案是:
同类题型
Sorry, sir. I can’t answer this question. —Well, you are supposed______ this part of history.
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Only when the fire was under control to return to their homes.
Nobody ______ to go into the laboratorywithout permission (????).