Ответы и объяснения

Задание 1:
1. ‘What are you doing?’ ‘I am reading. I have been reading for already two hours. I have already read 100 pages.’ 
2. When I left home yesterday, the snow had already stopped.
3. How long have you been waiting for me? I am really very sorry. 
4. He said he had worked for a long time without achieving good results. 
5. If he rings me up tomorrow, I'll tell him all about it. 
6. ‘Have you ever been to the new stadium?’ ‘Yes, I was there last Saturday.’ 
7. She always wears noce clothes.
8. Does he help his mother every day? 
9. At this time tomorrow we will be discussing your report. 
10. When she shopped that morning, she lost her money.
Задание 2:
1) more interesting
2) more
3) the worst
4) the highest
5) happier
6) more exciting
7) -
8) the shortest
9) louder
10) bigger
Задание 3:
1) was written
2) have been killed
3) built
4) was bought
5)have arrested
6) arrived
7) will be cleaned
8) wasn't invited
9) employs
10) has lost