Английский 9 класс, срочно

1-упражнение

1. have been

2. it's

3. can use

4. the person

5. safer

6. third

7. itself

8. wants

9. will reduce

2-упражнение

1. In the face of

2. saw

3. have existed

4. generates

5. was built

6. the first

7. it's

8. was

9. more expensive

3-упражнение

1. the big

2. twentieth

3. was sent

4. will change

5. became

6. us

7. sends

8. children

9. more