Great changes ___ in the city, and a lot
问题:
Great changes ___ in the city, and a lot of factories ___.
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
Great changes ___ in the city, and a lot of factories ___.
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