MR. BROWN____ IN THE ARMY FROM 1960 TO 1980. A. HAD SERVED B. HAS...

183. - 600 CAU TRAC NGHIEM TIENG ANH
600 CAU TRAC NGHIEM TIENG ANH
183. Mr. Brown____ in the army from 1960 to 1980. A. had served B. has served C. had been serving D. served