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UNIT 9
1. The government is making plans to install sensors and cameras in the city center to ____________ and help
drivers to avoid traffic jam.
2. It’s urgent to ____________ the city’s transport ____________ because almost all the roads get flooded after
heavy rain.
3. We can improve the ____________ of the inhabitants by reducing pollution.
4. ____________ can enjoy better health care than people living in the countryside.
5. They are building the new waste processing plant to ____________ before it is reused or discharged into rivers.
6. Be careful for ____________ and shopping malls when you visit big cities like Hong Kong or Beijing.
Multiple Choice
1. He couldn’t swim, ______?
A. could him B. could he C. couldn’t he D. couldn’t him 2. Nobody cheated in the exam, ______?
A. did they B. didn’t they C. did he D. didn’t he 3. You have seen this film, ______?
A. haven’t you B. have you C. do you D. don’t you 4. His name is Messi, ______?
A. isn’t he B. is he C. is it D. isn’t it 5. Let’s have a drink, ______?
A. don’t we B. do we C. shall we D. shan’t we 6. He can speak three languages, ______?
A. can he B. can’t he C. isn’t he D. is he 7. I think she is a good teacher, ______?
A. don’t I B. do I C. is she D. isn’t she 8. You went on a picnic last week, ______?
A. didn’t you B. didn’t I C. did you D. does he 9. Teresa is an accountant,___?
A. aren't she B. doesn't she C. isn't she D. she isn't 10. I am a good worker,___?
A. I am B. do I C. amn't I D. aren't I 11. Peirre is a grandfather,___? A. he isn't B. isn't he C. he is D. doesn't he 12. Kate is a doctor, ___?
A. she is B. is she C. doesn't she D. isn't she
A B upgrade traffic problem quality dwellers treat of life detect streets overcrowded infrastructure city wastewater
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13. Jacques and Alicia are students, ___?
A. aren't they B. are they C. isn't he D. isn't they 14. Mario is at work right now, ___?
A. aren't they B. isn't he C. is he D. isn't she 15. You and I are busy right now, ___?
A. aren't I B. aren't we C. we aren't D. aren't you 16. It's windy today, ___?
A. am I B. aren't they C. isn't it D. isn't he 17. You wanted that, ______?
A. would you B. didn't you C. wouldn't you D. do you 18. He saw that, ______?
A. is he B. won't he C. didn't he D. doesn't he 19. You know that's right, ______?
A. would you B. wouldn't you C. don't you D. didn't you 20. He wil be coming, ______?
A. is he B. did he C. doesn't he D. won't he 21. After all this time you'd think he'd have forgotten, ______?
A. didn't you B. wouldn't you C. don't you D. do you 22. The amount he is suffering from hay fever he needs to see a doctor, ______?
A. doesn't he B. did he C. won't he D. is he 23. You may think you know the answer but you don't, ______?
A. don't you B. would you C. wouldn't you D. do you 24. After working so hard he didn't deserve to fail the exam, ______?
A. doesn't he B. did he C. won't he D. is he 25. You wouldn't report me, ______?
A. don't you B. would you C. wouldn't you D. do you 26. He isn't going to like this, ______?
A. didn't he B. did he C. won't he D. is he
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