The Internet connection for the entire area when there was a sudden power cut yesterday.
A. lost
B. was lost
C. had lost
D. had been lost
网友回答
A. lost
(答案→)B. was lost
C. had lost
D. had been lost
解析：考查时态及语态。根据时间yesterday，应用一般过去式，根据句意：当昨天突然停电的时候对于整个地区的网络联系就失去了，be lost 失去的，所以选B。