1. She ____ doing aerobics now. A. are B. does C. is D. has 2. Lan: ____ are you doing, Mai? Mai: Im reading books. A. What B. Who C. Which D. When 3. Mr Anh: ____ sports do you play, Binh? Binh: I play soccer. A. Where B. Who C. Which D. When 4. What do you do in your ____ time? A. home B. busy C. good D. free 5. How ____ do you go swimming? Mai: Once a week. A. many B. much C. old D. often 6. Thus brother plays tennis three ____ a week. A. time B. day C. times D. hour 7. My students sometimes ____ their kites. A. play B. fly C. flys D. run 8. ____ does Jack often do on Saturdays? He often goes fshing. A. When. B. Why C. Where D. What 9. How ____ seasons are there in a year? A. much B. many C. long D. often 10. George ____ before he goes to school. A. usually is swimming B. is usually swimming C. usually swims D. swims usually 11. Its ____ in the summer. A. cold B. hot C. cool D. warm 12. Its cold in the A. Summer B. Winter C. Fall D. Spring 13. Ba goes ____ when its hot. A. swim B. swims C. swimming D. to the swim 14. An: What do you ____ when its hot? Ha: I go swimming. A. do B. does C. doing D. dont 15. What do you do ____ the Spring? A. on B. in C. at D. of 16. I like Fall because the ____ is cool. A. sport B. seasons C. weather D. activities 17. When ____ warm, Ba goes fshing. A. its B. it C. they D. theyre 18. There are four ____ in a year. A. Spring B. Summer C. seasons D. Winter 19. ____ you going to visit Hue this summer? A. Do B. Does C Are D. Is 20. Trees drop their leaves in ____ A. spring B. summer C. autumn D. winter Làm nhanh giúp mình nhé ko cần giải thích đâu nhưng phải đúng nha !!!