1. is
2. teachs
3. is teaching
4. lives
5. is.
6. have
7. love
8. don't have
9. live
10. speaks
11. doesn't teach
12. is staying
13. lives
14. studies
15. is enjoying
16. plans
17. doesn't like
18. loves
19. go
20. play
21. doent't play
22. is skateboarding
23. works
24. isn't working
25. doesn't feel .
1.b 2.c 3.a 4.e 5.f 6.g 7.d
1. Are <span>they busy on Sunday? </span><span><span>They aren't busy on Sunday.
</span>2. </span><span>Was his </span><span><span><span>friend </span>late for the lesson? </span>His friend wasn't late for the lesson.
3 Will </span><span>she at home tomorrow? </span><span><span>She will not at home tomorrow.
</span>4 Is it rainy today? </span><span><span>It is not rainy today.
</span>5 Is </span><span>the film over in 30 minutes? </span><span><span>The film is not over in 30 minutes.
</span>6 Are </span><span><span>they </span>interesred in music? </span><span>The aren't interesred in music.
7 Was </span><span><span>the child </span>in bed? </span><span><span>The child wasn't in bed.
</span>8 Were </span><span><span>his songs </span>popular 10 years ago? </span><span><span>His songs were not popular 10 years ago.
</span>9 Is </span><span><span>your dog </span>hungry? </span><span><span>Your dog is not hungry</span>.
10 Will </span><span><span>she </span>be in time</span>? <span>She will not be in time</span>.
1) The percentage of British exports in world trade didn't decline significantly.
Did the percentage of British exports in world trade decline significantly?
2) Business transactions don't usually start with enquiries.
Do business transactions usually start with enquiries?
3)Investing in infrastructure for industry won't encourage economic growth.
Will investing infrastructure for industry encourage economic growth?