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1. Vietnamese people often clean and decorate their house before Tet
2. Angel Falls at Venezuela is the highest waterfall in the world
3. It is very interesting to take a boat trip to the Perfume River
4. Which is the driest, Sahra Desert or Atacama Desert?
5. Ha Noi is the capital of Viet Nam. It has the history for more than 1,000 years
6. Eating and talking with friends are the most common ways to relax at recess in many countries
7. Could you tell me how to get to the police station please?
8. How much would it cost for a mail letter in the USA?
9. What time does Mai usually go to school?
10. This exercise isn't so difficult to that one