问题补充:
Many tall buildings in Shengsi in the past few years.
A. has been built
B. have been built
C. were built
D. have built
答案:
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。