问题补充:
By the time I , I realized that I had left my umbrella in the shop.
A. arrived at home
B. reach home
C. got to home
D. arrived home
答案:
A. arrived at home
B. reach home
C. got to home
(答案→)D. arrived home
解析:句意:当我到家的时候我意识到我把我的雨伞落在商店了,By the time引导,并且主要用于过去完成时从句(by the time +过去式),主句(主语+过去完成时)到家应是arrive home= reach home=get home,根据时态故选C。