The day came finally I was given an opportunity to act in the play.A. whenB. in that C.

问题补充：

The day came finally I was given an opportunity to act in the play.

A. when

B. in that

C. which

D. in which

答案：

(答案→)A. when

B. in that

C. which

D. in which

解析：考查定语从句。本定语从句的先行词是the day.定语从句I was given an opportunity to act in the play.是一个被动语态，句子结构很完整，故使用关系副词when,本题的先行词the day,具体大了某一天，与介词on连用，故when=on which。排除C项。That不能放在介词的后面，排除B项。故A正确。