I didn’t know it was Sunday I got to school.A. becauseB. whenC. afterD. until

问题补充：

I didn’t know it was Sunday I got to school.

A. because

B. when

C. after

D. until

答案：

A. because

B. when

C. after

(答案→)D. until

解析：考查连词，because 因为，when 当什么时候，after 什么之后，until 直到，句意：直到我到了学校我才知道是星期日。Not…until 直到，才，所以选D。