1. B / change : poorly

2. D

3. C / change : electricity

4. A/ change : easily

5. D/ change : am picking up

6. A / change : bored with

7. B / change : more

8. B / change : riding

9. A / change : few week

10. B / change : happier

II.

1. go -> to go

2. go -> went

3. on ->at

4. many -> much

5. feel -> feeled

6. saw -> seen

7. take -> took

8. thing

9. sell -> sold

10. dry -> drying

I.

1. was 

2. live

3. change

4. news

5. so 

6. after

7. children

8. over

9. play 

10. than

→

1.B->poorly

2.D->bỏ

3.C->electricity

4.A->easily

5.D->am picking up

6.A->bored with

7.B->more

8.B->to ride

9.A->few weeks

10.B->happier

II.

1.go->to go

2.go->went

3.on->with

4.many->much

5.feel->feeling

6.saw->seen

7.take-> took

8.thing->thing

9.sell->sold

10.dry=>drying

I.

1.was 

2.live

3.changed

4.news

5.so 

6.after

7.children

8.over

9.play 

10.than