In the past 5 years a great deal of money improving the environment of the school.
A. is spent
B. has been spent
C. was spent
D. had been spent
网友回答
A. is spent
(答案→)B. has been spent
C. was spent
D. had been spent
解析：考查时态。句意：在过去五年中大量的资金被投入改善学校的环境上。结合语境可知本句描述的是现在已经完成的动作，故用现在完成时态。选B。