I can’t remember when exactly the Robinsons left city；I only remember it was Monday.A. t

问题补充：

I can’t remember when exactly the Robinsons left city；I only remember it was Monday.

A. the；the

B. a；the

C. a；a

D. the；a

答案：

A. the；the

B. a；the

C. a；a

(答案→)D. the；a

解析：

leave the city离开这座城市。a Monday一个星期一，表泛指。