Ответ: Задание 7: 1. are doing(1);have been doing(2)

2. Здесь по смыслу должно быть слово wait, то-есть ждать, а не write -писать: are waiting (1); have been waiting (2)

3. are you going (1); do you go(2); go(3)

4. am writing (1);have you been writing (2);write(3)

Задание 8: 1)have been; 2)are; 3)am; 4)have been

1)

1b

2

2)

1 are you waiting

2 have been waiting

(В задании,кстати,опечатка слова)

3

1 b

2 a

3 c

4)

1 c

2 a

3 b

8

1 -b

2 a

3 a

4 b

9

1 I have been studying English since the fourth form.

2 We study English twice a week.

3 Where is Peter?He is studying now.