reading
1. c ( they are the only mammal that are able to fly )
2. a ( cực bắc và cực nam, dòng 1,2 đoạn đầu )
3. b 4. d (dòng đầu đoạn 3 ) 5. a ( dòng 2,3 đoạn cuối )
writing
1. if they use so much pesticide, the river will be polluted
2. i suggest decorating the living room for Tet
3.beacause of her good behavior, everybody....
4. since she had a lot of difficulties, she managed.....
5. nga is a good english speaker
6. i was disappointed because you didn't phone me
7. the weather was so bad that we....
8. because it rained heavily, they....
