Ответ:
I.
1. We haven't seen Chris since the New Year’s Eve.
2. She has known Pat for ages.
3. I have been a vegetarian since I was a child.
II.
1. He had written only 2 reports by 4 o’clock.
2. They had discussed the contract when I arrived.
3. I had finished my work before he returned.
III.
1. How much money was spent on your clothes yesterday?
2. Tofu is made from soya beans.
3. Millions of mobile phones will be bought next year.
4. Most football matches in England are played at the weekend.
5. These houses were built 5 years ago.
IV.
1. Playing the guitar is his favorite pastime.
2. Travelling be plane is faster than travelling by car.
3. Eating too much sweets is bad for you !
V.
driving; driven
writing; written
working; worked
paying; paid
drinking; drunk
living; lived
cooking; cooked
VI.
1. Is it snowing at the moment ?
2. Does she usually get up at 7 o’clock ?
4. Will we visit this museum tomorrow ?
5. Was he reading the book when the doorbell rang ?
VII.
1. We spent too much money on clothes last year.
2. It was such a good idea!
3. The sun shines brightly and there are no clouds in the sky.
Объяснение: