VOCABULARY AND GRAMMAR: Circle the letter A, B, C or D to indicate the correct answer to each sentence 1. Air pollution causes people’s _________problems. A. hearing B. smelling C. breathing D. feeling 2. He said he_____________in that factory. A. work B. works C. worked D. is working 3. Australia, The USA, Great Britain and _________speak English. A. Viet Nam B. China C. Canada D. Russia 4. The ___________language of Viet Nam is Vietnamese. A. official B. native C. foreign D. unique 5. Which are the most common____________disasters in your country? - Floods and typhoons. A. nature B. natural C. naturally D. inatural 6. If we __________more trees, there will be less air pollution. A. plant B. planted C. planting D. plants 7. Pompeii ____________by the eruption of Mount Vesuvius in AD 79. A. destroyed B. was destroyed C. is destroyed D. destroys 8. He would buy that car if he __________enough money. A. has B. have C. had had D. had IV. READING