Ответ:
exercise 1
1. Машины сжигают топливо.
2. Электростанции выделяют токсичные газы/токсины.
3. Это загрязнение накапливается в облаках.
4. Это загрязнение оседает на деревья.
5. Дождь со снегом / Мокрый снег.
6. Оно уничтожает рыб.
7. Оно травит деревья.
8. Оно пытается уменьшиться.
9. Солнечная энергия.
exercise 2
- It has been snowing all day.
- She has been working in hospital since 1999.
- How long have you been having driving lessons?
- I have been learning English for a long time.
exercise 3
1.Tony ________________has been talking_______ (talk) on the phone for two hours.
2.I ___have been looking_________________________ (look) for my keys since 11 a.m.
3.We ___have been waiting___________________________ (wait) for the bus for 20 minutes.
4.She _____has been playing_______________________ (play) computer games for 50 minutes.
5.They ____have been livong________________________ (live) in Moscow since January.
exercise 4
- Jane has been teaching the cycle of life.
- Rose has been cleaning out a pond.
- Dave has been planting flowers.
- Tim has been building nesting boxes.
exercise 5
- isn't she?
- hasn't he?
- isn't she?
- don't they?
- can't you?
exercise 6
- make up with
- make out
- make up
exercise 8
- f
- c
- h
- a
- d
- j
- b
- i
- g
- e