There______great changes in our hometown over the past 15 years.A_英语解答

There______great changes in our hometown over the past 15 years.A.has beenB.have beenC.wasD.were

人气：292 ℃　时间：2019-08-21 20:38:10

解答

B.have been
changes是复数,over+时间段又是完成时态的典型时间状语,所以选B