1 , What can we reduce to keep our envirenment clean ?
2 , What can we reuce to reduce garbage ?
3 , What can we to reduce garbage ?
4 , Tell names of continents you know ?
5 , What is the biggest city in Viet Nam ?
6 , What is the oldest universty in Viet Nam ?
7 , Name tv programmes ?
8 , Name sports and game ?