问题
选择题
Look at the factory! It _______ before I came here. [ ]
A. is built
B. has built
C. was built
D. was building
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Look at the factory! It _______ before I came here. [ ]
A. is built
B. has built
C. was built
D. was building
答案：C