单选题You know great changes&nb

问题补充：

单选题Youknowgreatchanges_____________inourschoolinthepasttenyears.A.have been taken placeB.took placeC.have taken placeD.were taken place

答案：

C解析C “发生”take place没有被动形式，排除A、D；in the past ten years提示用完成时，故选C。