中翻英 帮我翻译一下

Last week I was arranged in Class 207 which was said GD's classroom ,till yesterday afternoon had I changed to MM'class

They arranged me in the 207 classroom last week,but my classmate said it was GD's classroom afterward.I was changed to MM's class yesterday afternoon.

Last week, they take me in the 207 later GD said it is the GD's classroom for me yesterday afternoon classes to MM

Last week they arranged me in room 207 which was said GD's classroom, till yesterday afternoon had I changed to MM's class.

上星期他们把我安排在207 后来同学说那是GD的教室 我昨天下午才换到MM的班级
They had arranged me to 207 last week. After hearing from the classmates that it was the classroom for GD, I was then transferred to MM classroom.

had arranged 是最先发生的动词
was 是随后发生的动词

楼上句子有问题。。我来翻译
Last week, I arranged them to the 207, but students say it is GD's classroom. I only yesterday afternoon classes for the MM.