1. Cooperation : sự cộng tác

2. Unfortunately : thật không may

3. Beautiful : đẹp

4. Representatives : đại diện

5. Bleeding : chảy máu

6. Sleeplessness : sự mất ngủ

7. Extremely : cực kì

8. Enjoyable : vui

9. Useless : vô dụng

10. Voluntary : tình nguyện

1. In 2013, the World Water Week will be held under the theme “Water copperation -Building Partnerships”. (COOPERATE)

2. Unfortunately, dark clouds soon appeared and it began to rain. (FORTUNE)

3. Laura is the most beautiful person in our group. (BEAUTY)

4. Many representatives of the older generation were there. (REPRESENT)

5. She has cut herself, and it is bleeding quite badly. (BLOOD)

6. His health was seriously affected and he suffered from constant sleeplessness. (SLEEP)

7. Bao is extremely kind and generous to everyone. (EXTREME)

8. I’m pleased to hear that you had an enjoyable Christmas vacation. (ENJOY)

9. This knife is useless - it can cut everything. (USE)

10. The Scouting Association is the largest voluntary youth organization in the world. (VOLUNTEER)