问题
选择题
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
答案
答案：B
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。