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: About every 6 minutes. A: 4 B: At 11:00 am. A: OK. Got it! Thanks for your help. B: 5 A. This way please. B. What can I do for you? C. Do you live there? D. 5 yuan each. E. What time is the last one? F. It’s my pleasure. G. It takes 40 minutes. 1. 2. 3. 4. 5. 參考答案: 一 . 1. invented 2. bulb 3. airplane 4. hardwear