Спрос и предложение фирмы на рынке описываются уравнениями: Qd = 200 - 5Р; Qs = -10 + Р.

2

1for

2 already

3 just

4 since

5 just

6 ever

7 already

8 since

9 never

10 yet

3

1 have just walked

2 have felt

3 have been

4 have eaten

5 planed

6 ate

7 drank

8 did not drind

9 did not

10 ever had

4:

1have written

2 have you been writing

3 have you been writing

4 haven't wrote

5 have just wrote

6 have you been living

7 have not lived

8 have been staying

9 have you been learning

10 have been learning