20. Announcer : May I have your attention please? BR Flight 205 to Los Angeles is now boarding at Gate 86B. Passenger 1 : Excuse me, Sir. Where's Gate 86B? Passenger 2 : Over there. Just go straight to the end. __________ Passenger 1 : I see. Thank you, Sir. (A) You can't miss it. (B) It's a bit confusing. (C) It's a great idea. (D) You get a passport.

25. Mother : Tom, put on your helmet before you start your motorcycle. Tom : Yes, Mom. Mother : __________ Tom : O.K. I'll keep within the speed limit. (A) And be sure to ride slowly. (B) And don't stay out too late. (C) And keep it on all the time. (D) And put on your jacket. III、綜合測驗：下面兩段短文共有 15 個空格，為第 26 – 40 題，每題有四個選項，請依各段短文文意，選出一個最適合該空格的答案。 All of us, young and old, should take part in recycling programs to help conserve natural resources. When you recycle something, 26 of throwing it away, you use it again and again. If you drink juice or soda from an aluminum can, 27, you could throw the can away, 28 would be a waste, or you could recycle it. The aluminum can will be cleaned, 29 with other recycled cans, and re-formed into new cans. Lots of stuff can be recycled: aluminum cans, glass bottles, newspapers, grocery bags, cardboard, even some kinds of plastic. Recycling helps keep the balance of nature by making sure we don't 30 too much of what nature has to offer. Recycling can even help 31 air and water pollution. If you recycle glass and aluminum containers, then factories won't have to burn so 32 fuel to make new containers. If a factory burns less fuel, then it will put fewer unhealthy chemicals in the air and water.

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