问题补充:
By the end of last year, another new gymnasium in London.
A. have been completed
B. were completed
C. had been completed
D. was completed
答案:
A. have been completed
B. were completed
C. had been completed
D. was completed
解析:本题主要考查过去完成时的被动语态。句中的by the end of last year表示“截止到去年年末,是已过去的时间为参照对已完成的事情进行总结,故应使用过去完成时;其次,句中的new gymnasium 与complete之间存在被关系。故选择C。