几道英语时态题

几道英语时态题
1.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.have taken place were set up
2.I_____for the jewelry shop,forgetting my appointment with my dentist,whenmy wife_____me.
A.had left reminded B.left had reminded
C.was leaving was reminding D.was leaving reminded
3.Just watching Billy.He_____parts together,and they_____one anoher perfectly.
A.is fitting fit B.fits are fitting
C.fitted fitted D.was fitting fit