Great changes?the last three years.A.have taken place B.have been_英语解答

Great changes?the last three years.A.have taken place B.have been taken place C.have happened
D.have been happened

人气：246 ℃　时间：2019-08-21 08:36:50

解答

take place 是点时间,只能表示某一时刻的动作 happen可以表状态后跟段时间
the last three years是一段时间,所以要用happen