просто расставьте по порядку)

use

make polyethylene

recycle

extract oil

make plastic bag

Заранее

1.extract oil

2.use

3.make plastic bag

4.recycle

5.make polyethylene

1 he didn't open the window before classes.

    did he open the window before classes?

2 ann didn't translate a lot of foreign letters at the office last week.

  did ann translate a lot of foreign letters at the office last week?

3 i didn't finish work at five o'clock the day before yesterday.

    did i (you) finish work at five o'clock the day before yesterday?

4 he didn't live in kiev  five years ago.

    did he live in kiev   five years ago?

5 they didn't return home this evening.

    did they return home this evening?

6 they didn't discuss   a  lot  of   articles  from   these  french   magazines   last   week-end.

did they discuss  a   lot  of  articles   from  these  french   magazines   last  week-end?