WHEN I FIRST CAME TO THIS VILLAGE, IT WAS A QUIET PLACE. BUT SINCE...

7. - 25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN
25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN

7. When I first came to this village, it was a quiet place. But since then a lot of houses ___________.

A. had been built

B. were built

C. are being built

D. have been built