Help надо решить все 5 вопросов ну или как минимум 4 буду очень благодарен

Present Simple это глагол to be(быть, являться, находиться) будет
у местоимений таким
I am
You are
He, she, it IS
They are
You are we are

Настоящее время. Используются глаголы в начальной форме.
I work Я работаю (всегда, часто)
They work они работают
He workS ( у he, she, it к глаголу добавляется S).

Слова индикаторы этого времени always, often, never, sometimes, seldom...

I am 12.
I am from Saratov.
He is stupid.

Вопрос и отрицание образуется с вс глагола DO (DOES у he, she, it)

Do you love me?
Do they work there?
Does she know him? (Употребляя does основной глагол идет без S)
We do not deserve this.

Past simple глагол to be это was. were
I was
You were
He, she, it was
They were
You were
We were

She was very young.
Время происходит в
Глаголы употребляются в форме, это добавление к глаголу ed
WorkED
StoppED
Cry - criED
Неправильные глаголы идут во второй колонке нужно знать наизусть.
Do DID
Make MADE
think THOUGHT

Вопросом и отрицанием выступает DID
What did you do last summer?
I didn’t know that.

Слова индикаторы этого времени
Last (month, week, year, season...), yesterday, long time ago...

1.The population growth is the main cause of environmental pollution.
2. In the twentieth century, the population of the planet has increased more than ever in the history of human existence.
3. If this trend continues, in the next century the world population will double.4. Before 1900, many children born did not survive to adult age and, thus, could not have children of their own.5. In 1950 the average life expectancy in the U.S. was 57 years.6. People in these parts of the world began to immunize children have reduced child mortality.7. Already there are signs that in some parts of the world, population growth begins to decrease-Xia.8. In countries where the population grows at 2% per year, the number of inhabitants will advai place every 34 years.9. If the population growth is high in these and other countries, attempts to reduce the rate of growth will be in vain.10. Russia's population is declining sharply, as is born less and less children.