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
B