1. are sitting

2. am having

3. Is ... swimming

4. are enjoying

5. is not writing

2) Is – plays – is working – travels – is making – likes – lives – wants – studies – phones

3)

1. happier

2. most expensive

3. best

4. bigger

5. thinner

6. funniest

7. better

8. worse

9. most popular

10. more casual

4) no one – someone – everything – anywhere – somebody 

5)

1.There

2.there

3.it

4.it

5.there.

6)

1. on

2. on

3. on

4. in

5. out

6. on

7. with

8. in

9. from … to

7)

1. sea

2. their

3. hour

4. hear

5. write

6. by

7. meat

8. too

9. buy

10. son

8)

1. fun

2. disappointed

3. fame

4. interested

5. beautiful

6. talent

7. successful

8. surprised

9. fashion

10. excited