1. have visited 

2. has read

3. haven't begun

4. met

5. has been

6. haven't started

7. did your father gave up

8. have you been washing 

9. called

10. has moved

12. has been

13. have gone

14. spent

15. has explained 

16. have taken

freedom

 trên bản đồ ứng với số km trên thực địa :

255,9 dm2 = 255,9 dm2 = 25590 cm2

1. b

2. a

3. b

4. c

5. c

3. have collected

4. makes

5. am carving

6. helped

7. went

8. has done

9. has never eaten

10. have known

hnhu là 4

1. a

2. d

3. b

4. c

#tatcalataideadline

1. the wine is so good that i drank 3 glasses in a row

2. he has studied chinese for five years

3. on account of behaving badly, she was punished

4. lan suggested going out for a walk