早教吧 育儿知识 作业答案 考试题库 百科 知识分享

28.Great changes ___ in the city,and a lot of factories ___.A .have been taken place; have been set upB .have taken place; have been set upC .have taken place; have set upD .were taken place; were set up

题目详情
28.Great changes ___ in the city,and a lot of f
actories ___.
A .have been taken place; have been set up
B .have taken place; have been set up
C .have taken place; have set up
D .were taken place; were set up
▼优质解答
答案和解析
前一句主动后一句被动选B