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Ответ:

1) 1.swimming

2. shining

3. making

4. running

5. decorating

6. lying

7. reading

8. doing

9. having

10. wearing

11. studying

12. playing

2) 1. am

2. are

3. is

4. is

5. are

6. are

3) 1. c

2. b

3. d

4) 1. I'm not sitting in the back

2. they aren't playing football

3. she isn't eating dinner

4. you aren't writing a letter