Giups mik mn ơi 11. She ___________ out with her friends last night. A. is going B. went C. to go D. goes 12. I have known her _________ two years. A. with B. for C. since D. in 13. They _________ many old books for 5 years. A. recycled B. is recycling C. has recycled D. will recycle 14. To prepare for the new year, I _________ my house again since last month . A. paint B. painted C. have painted D. has painted 15. They _________ the used plastic bottles with water several times yesterday. A. washed B. is washed C. are washed D. were washed 16. It is dangerous _________ quickly. A. driving B. drove C. to drive D. driven 17. I like _________ to my friends in my free time. A. talk B. talking C. talked D. to talking 18. My dad enjoys ____________ his bike to work. A. rides B. to ride C. riding D. ride 19. -“What would you like to drink now?” - “_______________.” A. No, thanks B. I like to do nothing C. Yes, please D. Orange juice, please 20. She worked very hard, _______she passed all her exams. A. because B. and C. so D. but