Помогите! Даю 45 балов

Ответ:

1. Where are the pupils? - They (are planting)

trees. They (have been planting) them

since the morning. They always (plant) trees

in October. They have already

(planted) several hundred threes this year.

2. Ann (is having) her music

lesson now. She (has) her music lessons

twice a week. I am going to

take a walk. I (have done) all my home

exercies already. I (have been doing) them

for

three hours.

4. Since when have they (been building) this

house?

5. At last I (have

found) the book I need. I (have been looking

for) it for a quarter of an hour.

6.

Don't shout. Helen (is reading) an English

book. She (works) at her

English every day. She (has been learning)

this language for three years. She (has read)

many English stories this year.

7. What are you ( doing) in the

morning?

8. What have you (been doing) since the

morning?