Great changes＿＿in Shanghai since 1992.a.have taken place b.have been taken placec.take part ind.have been happened to
问题描述：
Great changes＿＿in Shanghai since 1992.
a.have taken place
b.have been taken place
c.take part in
d.have been happened to
答
a.have taken place
since做状语，所以要用完成时
take place没有被动语态
所以选a
答
A
since 决定用完成时，take place不用被动。
答
选A
take place 不用被动态!