JOHN BELIEVED THAT THE STRANGER ... A POLICEMAN. A. WAS B. IS...

667. - 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

667. John believed that the stranger ... a policeman.

A. was

B. is

C. has been

D. being