III.Choose the correct answers.
17. Ha Long Bay is Vietnam's wonder.
A.most beautiful natural B.most natural beautiful
C.the most beautiful natural D.the most natural beautiful
18. The Amazon .
A.Rainforest B.Rainy Forest C.Wet Forest D.Wetter Forest
19. is a large thick bag for sleeping in, especially when you are camping.
A.A sleeping bag B.A sleep bag C. A sleepy bag D.A bag for sleeping
20. If we had a ,we wouldn't get los.
A.backpack B.ruler C.compass D.painkiller
21. You travel alone to the mountain. Always go in a group.
A.must B.mustn't C.do D.don't
22. People think Ayers Rock is in the evening when it is red.
A.good B.better C.best D.the best
23. You take a lot of warm clothes when you go to Sa Pa in winter.
A.must B.mustn't C.can D.can't
24. Ba Be Lake is the largest lake in Viet Nam.
A.fresh B.freshwater C.water D.mount
25. The Imperial City in Hue is the greatest .
A.tourist attraction B.tourist attractions C.tour attraction D.attraction tourist
26. Ha Long Bay is the number one in Viet Nam.
A.nature wonder B.natural wonder C.wonderful nature D.wonder nature
27. You be late for school. It's against the school regulations.
A.must B.mustn't C.can D.can't
28. You all necessary things along with you before you start your trip.
A.takes B.won't take C.must take D.mustn't take
29. The boat trip to Ca Mau, the southern tip of Viet Nam, was experience of my life.
A.good B.better C.best D.the best
30. 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