问题
选择题
A new bridge _______ across the river in Changsha and it is expected to open next year.
A. is built B is being built C. are built D. has been built
答案
答案：B
本题考查时态。有后面的it is expected to open next year预计明年通车可知“桥应是正被修建”，所以要用现在进行时的被动语态。