Употребите необходимый артикль. 1. barbara is teacher. she has stressful job. 2. box is made of silver. 3. it’s very important news. where did you get news? 4. i’d like sandwich or toast with cup of black coffee. 5. there was accident in centre of city week ago. 6 . butter is made from milk. 7. if figures are correct, you’ll have chance to win lottery. 8. they have two children, boy and girl. boy is seven years old and girl is three. 9. close door, please. i may catch new cars are very expensive. i bought old one. 11. there are apples and oranges on kitchen table. there is also vase with flowers on it. 12. — have you bought present for coming holiday? — yes, i did it week ago. and i’ve got surprise for you too. 13. vegetarian is person who doesn’t eat meat. 14. what miserable weather it is today! i hate such weather. 15. — where are keys to the car? — i saw them minute ago on desk. 16. — computer is out of order and i’ve lost mouse again! — it on mat, wasn’t it?

1) a, a
2) a, the
3) a, the
4) a, a, a, the
5) an, the, the, -
6) a, a
7) the, a, a
8) a, a, the, the
9) the, the, an
11) -, -, a, - 
12) a, the, -, the
13) the, a, the
14) a, -, the
15) the, a, a
16) a, -, -

1-Thank you. I (have read) your book. You can have it back.
2-Nelly, how long have you (been reading) "Robin Hood" ?
3-My elder sister (has been cooking) the pie since 10 and it is not ready yet.
4-I (have) already made the pie. Have you set the table, dear ?
5-Why are your hands dirty ? -I (have been working) in the gar den. I (have made) two flowerbeds.
6-I have never (been) to Italy, but I have always (wanted) to be there.
7-Oh, look ! She (has drunk) the whole bottle of milk.
8-Jack and Jonn (have been playing) tennis for an hour and a half and they (have played) three games.
9-I am tired. I (have been washing) the dishes for the whole evening. I am sorry, I (have broken) one plate.
10-Nick is working on his computer. He (has been working) since 9. But I (have not worked) on it in my life. 

Television was invented many years ago. Of course, television has its pros and cons. The first advantage, and most important, in my opinion, is the ability to get news and a variety of information about the world, being in his apartment. You can see what is happening in the world and how it is changing. Consider a shortcoming of the TV is blurred vision. People spend hours watching TV and don't even think they have at this point, the vision is becoming worse and worse. Advertising. In my opinion, ads can be attributed to the pluses, and to minuses. Why? The first is that the advertising often shows useless products. Second, because sometimes we can make use of the products of constant demand. It's a good substitute for walking around the store for hours when the advertising gives us exactly what we need. Another negative. Many people have formed a bad habit of eating in front of the TV. But then it is bad for the digestion. Of course, you can talk endlessly about the pros and cons of television. We've covered the most important ones. Conclusion: in my opinion, television has more disadvantages than advantages. It is better to go to walk around the city, play outdoor games, than sit for hours in front of the TV, thus causing all sorts of damage to your health.