Many tall buildings in Shengsi in the past few years.
A. has been built
B. have been built
C. were built
D. have built
网友回答
A. has been built
(答案→)B. have been built
C. were built
D. have built
解析：本题的主语为复数，意思为许多高楼大厦，故不选A，本题大楼被建造表示的是被动的意思，故不选D，本题表示的是从过去到现在事情被完成，故本题使用完成时的被动语态，故本题选B。