HAVE YOU EVER SEEN A FOREST _________ BY FIRE

1. - KT 15'' SO 1 HKII K10 SAU UNIT10 CO DAP AN
KT 15'' SO 1 HKII K10 SAU UNIT10 CO DAP AN

1. Have you ever seen a forest _________ by fire?

a. destroy b. destroyed c. was destroyed d. which destroyed