Question

—I heard the peasants here        very poor in the past.
—Yes,but there        great changes in the past few years.

A．have been;have been	B．have been;were
C．were;have been	D．were;were

Answer 1

C

此题的时间概念很明确，in the past指过去时间，而in the past few years常与现在完成时连用。