My favourite hi tech which helps study​

1) he is at home,  is not he? 2) i'm drunk, am not i? 3) you can't help him, can you? 4) we mustn't do it,  must we?

5) they were at the party, were not they?

6) he will not be back, will he?

7) she could help us, could not she?

8) you have no mercy, have you?

9) we have some food, have not we?

10) he will be here, won't he?

11) it's not tasty, is it?

12) it was good, was not it?

jess hasn't got a big cockerel.

a fox isn't black.

1.a garbage is not only ugly, bute dangerous because it causes an air pollution.

2. cars are an important part of a life for most people. but cars also cause a pollution and release fume.

3. in canada people don't realise that they throw out 10,000 tons of a waste.

4. over 14 billion pounds of a waste per year is throw out to sea and it kills millions of sea animals.

5. if we want to breathe  a healthy air we have to think about what we do.

6. because of our lack of a knowledge there is now a huge hole over an antractic.

7.a water is a vital element of a life.

1.if you work ’ll pass your exam. d)hard. 2. would you like to drink? a)something 3. you can your knowledge of english if you read more. b)improve 4. it is often quicker to travel by train than by bus. is cheaper.    a)in addition to, 5. what subject at the university is ? b)the most difficult