----I’m sorry but making a telephone call is not allowed in the meeting-room.--Oh Ith

问题补充：

----I’m sorry, but making a telephone call is not allowed in the meeting-room.

----Oh, Ithat, Sorry, I don’t do that again.

A. don’t know

B. didn’t know

C. won’t know

D. haven’t known

答案：

A. don’t know

(答案→)B. didn’t know

C. won’t know

D. haven’t known

解析：根据语境, “我不知道”, 应该指说话前的动作, 而现在已知道了。所以本题用一般过去时。