COLUMBUS…….AMERICA MORE THEN 400 YEARS AGO.A-DISCOVERED B-HAS DISCOV...

3- - BAI TAP TRAC NGHIEM VE THI TRONG TIENG ANH
BAI TAP TRAC NGHIEM VE THI TRONG TIENG ANH
3-Columbus…….America more then 400 years ago.A-discovered B-has discovered C-had discovered D-he has gone