1. Complete the passages with the words from the box. width mestone as found largest much cave, located in Quang Binh province, Son Doong cave is world's (1). Vietnam. It was (2) by a local man named Ho Khanh in 1991 and was etently discovered in 2009 by British cavers, led by Howard Limbert. The name "Son Fulpoong" cave (3) "mountain river cave". The cave was created 2-5 million underneath the mountain. years ago by river water eroding away the (4) ellyears At about 9 kilometers in length, 200 meters in (5). height, Son Doong Cave is (6) replaced Deer Cave to take pole position (7). means and 150 meters in larger than Deer Cave in Malaysia and has the world's largest cave. fort carefully then choose the correct answers.