Great changes ___ in my hometown and a lot of factories _______.

A. have been taken place , are being set up  B. have taken place , have been set up

C. are taken place , had been set up        D. had taken place , will be set up

Great changes ______ in my school in the past ten years.

A．took place                             B．were taken place

C．have taken place                        D．have been taken place

Great changes _____in my hometown in the past few years.

 Great changes ______ in my hometown in the last ten years.

A．took place                             B．have taken place

C．have been taken place                   D．was taken place

Great changes _________ in my hometown in the past 20 years.

A. took the place       B. have taken place     C. were taken place     D. took place