—Iheardthepeasantshere

问题详情：

—I heard the peasants here ____ very poor in the past．

—Yes，but there ______ great changes in the past few years．

A．were；were        B．have been；have been

C．have been；were     D．were；have been

【回答】

D

知识点：动词时态

题型：选择题