46.Which luggage do you have? - I have a new blue _______. A. carousel B. passport C. hat D. backpack 47.I _______ mountain biking with my friend last week. A. go B. went C. played D. did 48.What’s this castle made _______? A. of B. into C. in D. from 49.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. 50. “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