WE ... THAT ROOM IN NOVEMBER. IT ... IN USE FOR 5 MONTHS. A. BUILD...

71. - 1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN
1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN

71. We ... that room in November. It ... in use for 5 months.

A. build/ be

B. build/ has been C. built/ be

D. built/ has been