问题
选择题
The teaching building ________ 10 years ago, but it looks quite new now. [ ]
A. built
B. was built
C. has built
D. is built
答案
答案:B
The teaching building ________ 10 years ago, but it looks quite new now. [ ]
A. built
B. was built
C. has built
D. is built
答案:B