Form words from the segments using sufixes -e, -able, -ing, -er, -ant, -tion, -al, -ful, -ed,
-ous, -less to fill in the blanks
contamin(at)-, pollu(t)-, dispose-, discharg-, poison-, recycl-, harm1)
Paper
is one of the most frequent waste materials, but it can be _______.
2) Nuclear waste can _______ the groundwater.
3) Pesticides are usually _______ substances. But organic fertilisers, e.g. manure, are _______.
4) Coniferous forests in the Northern Bohemia were _______ by acid rains.
5) Chemical factories _______ large amounts of waste water into rivers.
6) Paper, glass, plastics, and metals are _______ materials.
7) Acid rain is caused by _______ gases.
8) CO2 is a _______ which probably contributes to global warming.
9) Changes in the climate are due to _______of the atmosphere.

1. where is your friend? — he is at  school. he is not at home. michael has  a car. his car is red.  3. this book is on a  table. put the  book on a shelf.4. what’s that? — it’s a pencil. the pencil is long.5. it's a bus. the bus is big and  yellow.6. where is the  dog? — the dog is under the bench.7. where is his son? — his son is at school.8. the  sun is shining in the  sky.9. this is a street. i can see many cars and buses in the  street.10. this is a  tram. what colour is the  tram? . 7. вставьте артикль, где необходимо.1. he has a short hair. his hair is short.2. there is a  pen in a pencil-box. the pen is black. 3. we have a room. our room is large.  4. there is a  table and a  sofa in the room.5. can you see the  cat on the sofa? 6. where is the  bird? the bird is in a tree.7. the weather is fine. the sky is blue and cloudless.8. that is a  cat. that cat is my  cat. the cat is grey. 9. i see many children. what are the children doing? — the children are playing  in the yard.10. where is my book? — your book is on a table.11. there is no butter on the table. where is the butter? . 8. вставьте артикль, где необходимо.1. i can see many people in the street.2. can you see the car? 3. she is a  manager. she is at work. she works at  an  office.4. do you see these flowers? what colour are the flowers? 5. there is a big brown table in the middle of our room.6. there are two kittens in a  box. the kittens are black.7. do you see the boy in the street? he is a pupil of our school. he is a good pupil.8. my sister is a student. she studies at  an institute. she is a good student and  a  good sister.9. this is a wolf. the wolf is very hungry. 10. there is a  carpet on the floor. the carpet is new.