Нужно выбрать одну тему и написать эссе,please help me

The United Kingdom of Great Britain and Northern Ireland is situated on the British Isles. The British Isles consist of two large islands, Great Britain and Ireland, and about five thousands small islands. Their total area is over 244 000 square kilometres.
The United Kingdom is one of the world’s smaller countries. Its population is over 57 million. About 80 percent of the population is urban.
The United Kingdom is made up of four countries: England, Wales, Scotland and Northern Ireland. Their capitals are London, Cardiff, Edinburgh and Belfast respectively. Great Britain consists of England, Scotland and Wales and does not include Northern Ireland. But in everyday speech «Great Britain» is used in the meaning of the «United Kingdom of Great Britain and Northern Ireland». The capital of the UK is London.
The British Isles are separated from the Continent by the North Sea, the English Channel and the Strait of Dover. The western coast of Great Britain is washed by the Atlantic Ocean and the Irish Sea.
The surface of the British Isles varies very much. The north of Scotland is mountainous and is called Highlands. The south, which has beautiful valleys and plains, is called Lowlands. The north and west of England are mountainous, but the eastern, central and south-eastern parts of England are a vast plain. Mountains are not very high. Ben Nevis in Scotland is the highest mountain (1343 m). There are a lot of rivers in Great Britain, but they are not very long. The Severn is the longest river, while the Thames is the deepest and the most important one. The mountains, the Atlantic Ocean and the warm waters of the Gulf Stream influence the climate of the British Isles. It is mild the whole year round.

1. We … TV when it started to rain.

were watching

Мы смотрели телевизор, когда начался дождь.

Past Continuous - так как длительное действие было прервано более коротким действием в (Past Simple).

2. I wanted to visit you yesterday, but you … not at home.

were

Я хотел навестить тебя вчера, но тебя не было дома.

Were - форма глагола to be (быть времени.

You, we, they + were ...

3. Look! It …, so we can't go to the beach.

is raining

Смотри! Идёт дождь, поэтому мы не можем пойти на пляж.

Present Continuous - так как действие происходит непосредственно в момент речи.

4. While he was in the shower, his dogs … his steaks.

ate

Пока он был в душе, его собаки съели его стейки.

Одновременное действие в .

5. The sun … in the East.

rises

Солнце встает на востоке.

Present Simple - констатация факта.

6. Since 2003 they … their son every year.

have visited

С 2003 года они навещают своего сына каждый год.

Present Perfect - действие началось в (в 2003 году), продолжается в настоящем и может продолжиться  ещё в будущем.

7. After Larry … the film on TV, he decided to buy the book.

had seen

После того, как Ларри посмотрел фильм по телевизору, он решил купить книгу.

Past Perfect - так как одно действие произошло раньше другого действия в .

8. Wait a minute, I … this box for you.

'II carry

Подожди минутку, я отнесу тебе эту коробку.

9. She … her left arm two weeks ago.

broke

Она сломала свою левая рука две недели назад. -

Past Simple - действие произошло в определенное время в .

10. - I'm about to fall asleep. I need to wake up!

- I ... you a cup of coffee. That will wake you up.

'II make

- Я cделаю тебе чашечку кофе. Это тебя разбудит.

11. Last I … my elder sister in April, and it's June already!

saw

В последний раз я видел свою старшую сестру в апреле, а сейчас уже июнь!   - действие произошло в .

12. Listen! There's someone at the door. I … open.

'II

Слушай! Кто-то стоит у двери. Я открою.

Формы was open, am open, have open - неприемлемы.