1. washes 2. runs
3. doesn’t laugh 4. wears
5. sleeps 6. doesn’t dity
7. helps 8. eat
9. doesn’t understand 10. dusts
11. goes 12. haves
13. smokes 14. watch
15. repairs 16. does
17. visits 18. shines
19. blows 20. doesn’t ride
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1. is coming 2. is teaching
3. is studying 4. Are singing
5. aren’t suffing 6. is wearing
7. are sitting 8. is going
9. is traveling 10. are playing
11. is flying 12. is mending
13. is doing 14. is snowing
15. is baking 16. is enjoying
17. is preparing 18. is breaking
19. are behaving 20. is planting
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1. a 2. a 3. b 4. a 5. b 6. b 7. a
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1.works 2.goes
3.brushes 4.are running
5.hates 6.is living
7.are correcting 8.participates
9.takes 10.is directing
11.are playing 12. chúc bạn học tốt >.<