с английским

1 Choose the correct options.
They got / have got back from their holiday last night.
What did he do / has he done before he became a politician?
When have you inherited / did you inherit the house?
How long have you known / did you know the Duke and Duchess? They’re charming!
My great-grandmother died / has died last year.

Выделила цветом верные, на мой взгляд ответы..

2 Complete the conversations with the Present Simple, Present Perfect, or Past Simple form of the verbs in brackets.
Conversation 1
A (1 have) Do you have a dog?
B Yes, I have.
A (2 have) How long you it?
B We’ve had Hector for four months now.
A (3 cost) How much he ?
B (4 pay) We about £500, I think.

Conversation 2
A (5 do) What you ?
B (6 be) I an economist for The Guardian newspaper.
A (7 work) Where you ?
B I usually work from home.
A (8 work) How long you as an economist?
B For five years.

1. A hypothesis usually explains or correlates a number of facts. - Present Simple.

2. We spoke about hypotheses, theories and laws last week. - Past Simple.

3. The atomic theory explains and interprets the facts in terms of atoms. - Present Simple.

4. A good theory will live a long life. - Future Simple.

5. Will you tell (Future Simple) us what you know (Present Simple) about a hypothesis?

1. Гипотеза обычно объясняет или сопоставляет ряд фактов.

2. На неделе мы говорили о гипотезах, теориях и законах.

3. Атомная теория объясняет и интерпретирует факты с точки зрения атомов.

4. Хорошая теория проживет долгую жизнь.

5. Расскажете нам, что вы знаете о гипотезе?

1) If Nazerke drives carefully, she will not have any accident.

Present Simple ("drives"); говорится о возможном будущем ⇒ 1 тип

2) If you mail the letter he may receive it on Monday.

Говорится о возможном будущем, есть "may" ⇒ 1 тип и Present Simple

3) If we helped each other, we would be happier.

Past Simple ("helped"); сожаление о настоящем ⇒ 2 тип

4) I would have looked them up if I knew that they were living in Taraz.

Сожаление о , есть "would have ..." ⇒ 3 тип и Past Simple

5) Bolat might not have an accident if he does not brake suddenly.

Говорится о возможном будущем, есть "might" ⇒ 1 тип и Present Simple