30. The No. 5 subway line, ______in October, 2007, has greatly improved the traffic conditions in Be...
2023-01-09 08:22:16 184次 广西三市2010届高三下学期第一次模拟考试 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
30. The No. 5 subway line, ______in
October, 2007, has greatly improved the traffic conditions in Beijing.
|
A．opened
|
B．was opened
|
C．being opened
|
D．to be opened
|
本题链接：
