参考答案：
答案： 1-5 A C B D B 6-10 C D B C D 11-15 A A B C B 16 A
17-21 B C D A B 22-26 D C B A C27 D 28 C 29 A 30 C 31 B 32 B 33 A 34 D 35 C 36 B 37 A 38 A 39 D 40 C 41 C
42 D 43 A 44 C 45 E 46 B 47 G 48 D 49 A 50 C
51 drawn 52 mouth 53 before 54 popular 55 for 56 hours 57 saw 58 artists
59 because 60 distance 61 no 62 happens 63 wrong
答案： 64 They like fast food and they don't understand the importance of eating healthily.
65 They are with plenty of calcium and calcium is essential for the development of healthy,strong bones.
66 Lifestyle habits can be developed during our teenage years.
67 Yes. 68 The writer expects people to eat what they should eat, develop lifestyle habits during teenage years and understand the importance of eating healthily by projects like “Feed Me Better”continue to give out the right messages.
69 What's the population of Dalian? How many people are there in Dalian?
70 He is reading (books) in the library.
71 Our classroom is cleaned / tidied up twice a day.
72 Now many people like traveling by high-speed train / taking the high-speed train, because it is faster.
73 I believe / am sure that I can reach the top of the mountain at last / in the end / finally.
