I didn’t realize my mistake my teacher had a face­to­face talk with me.A. untilB.

问题补充：

I didn’t realize my mistake my teacher had a face­to­face talk with me.

A. until

B. after

C. since

D. when

答案：

(答案→)A. until

B. after

C. since

D. when

解析：考查not…until结构。直到老师找我面对面的谈话，我才意识我的错误。选A.