Choose the best option 1. The Sahara is the third largest __________ in the world. A. island B. desert C. valley D. mountain 2. When hiking overnight, don’t forget to bring the __________. It will keep you warm at night. * A. sleeping bag B. hiking boots C. sun cream D. painkillers 3. Peter must __________ this essay today. He’s going out tomorrow. * A. to finish B. finishes C. finishing D. finish 4. Those islands in Nha Trang are named______some interesting animals such as monkeys or swiftest. * A. around B. in C. after D. by 5. Ba Be Lake in Bac Kan is______natural lake in Viet Nam. A. the largest B. the large C. largest D. large 6. You______throw the rubbish into the West Lake A. may B. must C. mustn't D. may not 7. You must remember to bring a_______- it's very useful when you go into a cave because it's very dark there. A. scissors B. torch C. clock D. compass 8. Ha Long Bay is _______ wonder of Viet Nam. A. most beautiful natural B. most natural beautiful C. the most beautiful natural D. the most natural beautiful 9. He learns English_______ than we do. A. badly B. badlier C. more badly D. worse 10. My sister had a headache yesterday when she returned from her camping. My mother gave her some______to reduce it. A. painkillers B. plaster C. sun cream D. cool water