Question

The unemployment rate in this district______from 6% to 5% in the past two years.

1. A.
   has fallen
2. B.
   had fallen
3. C.
   is falling
4. D.
   was falling

Answer 1

A
考查时态，句子的时间状语是：in the past two years.而英语中in/during the past/last two /few years.都和现在完成时连用，句意是;这个地区的失业率在过去两年已经从6%下降到5%。选A。