1. Don’t forget to turn the lights ________ when you leave. Lighting costs too much nowadays. A. on B. to C. out D. off 2. There's not a lot that distinguishes her ________ the other students. A. for B. with C. from D. as 3. They________ yet, but they should be here soon. A. don’t arrive B. haven’t arrived C. won’t arrive D. aren’t arriving 4. That’s the girl ________ father says he’s invented the machine. A. who B. whom C. whose D. that 5. The Lunar New Year occurs in late January ________ early February. A. or B. and C. so D. but 6. We shouldn't use too many plastic bags because they are very hard to ________. A. burn B. heat C. melt D. dissolve 7. We can save a lot of natural resources by ________ bottles and cans. A. recycling B. exploring C. overusing D. throwing 8. You should ________ an ordinary 100-watt light bulb with an energy-saving one. A. change B. replace C. select D. consume 9. - David: “Would you like a glass of green tea?” - Mary: “________” A. No, let’s not. B. No, I don’t. C. No, thanks. D. No, I wouldn’t. 10. - Sue: “Why not go fishing today?” - Peter: “____________” A. No. I’m not. B. No, I don’t want to. C. Yes, please. D. Good idea.

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