问题
选择题
Look ! The building which _________now will be used as a library.
A.is being built
B.to be built
C.is built
D.being built
答案
答案:A
which _________now是定语从句,根据now,从句谓语要用现在进行时态,且主语which,即The building,和build是动宾关系,所以用现在进行时态的被动语态。选A。