17 Read and correct the mistakes. 4 Venus is the closest planet to the sun.
1 Mars has oceans on its surface.
The Earth has oceans on its surface.
5 The ancient Romans called the Sun 'Helios
2 Summers are not on Mars.
3 People use goggles to look at the planets.
6 The Earth has two moons.​

•Артикль a/an
a-если слово начинается с согласной буквы
Например: a dog
an-если слово начинается с гласной буквы
Например: an apple
Артикль a/an пишется если:
1) говорим о чем-то впервые
2) имеет значение 1( вернусь через одну минуту)
3) если перед существительным есть прилагательное
a big city; an interesting book
4) после: this that is
there is I(we,they,you) have
He(she,it) has
5) когда называем проффесию
He is a doctor. She is a student.

•определенный артикль the
1) если о предмете говорилось ранее.
2)объект известен(находится в пол зрения или по ситуации)
3) единственный в своей роде или в данной ситуации.
Open the door. The sun
4) есть пояснение
5) есть порядковое числительное(1-ый, 2-ой или прилагательное в превосходной степени самый-самый)
•артикль с географическими названиями.

Определенный the нулевой
1) все что касается воды(океана; моря; реки; озера)
The Atlantic ocean. The Baical.
2) группа острово, цепь гор.
The Caucausus. The Caribians.
3) Вся семья
The Browns
4) название музеев, журналов, газет.
the British Museum

Без the
1) все что касается суши(контитенты, страны, города, улицы, площади)
Europe, Africa, Russia, Canada, London, Moscow
НО: the USA; the Russian Federation
2) один остров, одна гора
Everest; Madagascar.
3) дни недели, месяцы
Monday; May

Ronald Wilson Reagan was born in 1911, February 6th. When his father saw him, he said: 'He looks like a fat little Dutchman. But who knows, he might grow up to be president some day'. And this happened in 1981. But before that Ronald Reagan worked as a lifeguard on a Rock River in Lowell Park and saved 77 people. In addition, he was an actor and had started as a commentator of sports event on small radio stations. In 1937 he got his first role in the movie called 'Love Is On The Air'. In 1964 Reagan became well-known as a politician due to his speech 'A Time For Choosing'.

During the president's terms Ronald Reagan was helding the economic policy called 'Reaganomics'. On the one hand, it can be considered as trickle-down economics (when only the rich can get benefits), on the other - as free-market economics. The income taxes were cut and this led to economic growth: inflation was reduced (from 12,5% to 4,5%) as well as unimployment (from 7,5% to 5,3%). However, the national debt grew to 2,85 trillion of dollars. So, the results are debatable.