9. According to the flight plan, our plane ................... in London at 7 o’clock tonight. A. arrive B. arrives C. has arrived D. arrived 10. .................... pollution is the responsibility of both ordinary people and the authorities. A. Preventing B. Covering C. Providing D. Minimizing 11. They were amazed .................... your excellent performance, and then excited .................... it. A. in / at B. at / by C. at / on D. at/ about 12. Do you think I should practice ................... English every day? A. speak B. to speak C. speaking D. spoke 13. Mr. Nuts, is great at finding ................... at the crime scenes. A. cling B. clues C. clause D. cloud 14. Which luggage do you have? - I have a new blue ................... A. carousel B. passport C. hat D. backpack 15. I ................... mountain biking with my friend last week. A. go B. went C. played D. did 16. What’s this castle made ...................? A. of B. into C. in D. from 17. Mrs. Hoa: “Could you do me a favor, please?” - Nhi: “...................” A. No. Thanks. B. Yes. That’s very kind of you. C. Sure. What can I do for you? D. Thank you. I’m fine. 18. “What chores do you have to do?” – “ ...................”. A. I have to wake up at 5 a.m. B. I have to wash the dishes after dinner. C. I have to go to school by bus. D. I have to do my homework.