If you____(to drive) along the river bank it___(to be) twenty miles out of your way. If you___(to take...

Давайте разберем ваш вопрос и заполним пропуски в предложениях, используя правильные формы глаголов.

1. If you drive along the river bank, it will be twenty miles out of your way.

   • Здесь используется простое настоящее время для условия (if-clause), а будущее время для результата.

2. If you take your mobile phone into class, it must be turned off.

   • В этом предложении также используется простое настоящее время для условия, а "must" указывает на обязательство.

3. We do not use calculators when we write tests.

   • Здесь отрицательная форма в настоящем времени (do not) используется с простым настоящим временем.

4. If you push this button, the volume will increase.

   • Условие в простом настоящем времени, результат — будущее время.

5. If you close the door, it will lock automatically.

   • Аналогично предыдущему предложению: условие и результат в различных временах.

6. I wear my old boots when I work.

   • Простое настоящее время используется для описания привычек.

7. When I cook salads, I use only olive oil.

   • Здесь также используются простые настоящие времена.

8. When I concentrate, please do not make so much noise.

   • Условие в простом настоящем времени, а вторая часть — отрицательная форма.

9. Unless prices rise, it will not be a good investment.

   • Условие в простом настоящем времени, а результат в будущем времени с отрицанием.

10. Unless someone asks you politely, you will refuse to do anything.

    • Здесь также используется простое настоящее время для условия и будущее время для результата.

Теперь, когда мы заполнили пропуски, у нас получился полный текст:

"If you drive along the river bank, it will be twenty miles out of your way. If you take your mobile phone into class, it must be turned off. We do not use calculators when we write tests. If you push this button, the volume will increase. If you close the door, it will lock automatically. I wear my old boots when I work. When I cook salads, I use only olive oil. When I concentrate, please do not make so much noise. Unless prices rise, it will not be a good investment. Unless someone asks you politely, you will refuse to do anything."

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Here is an expanded explanation and completion of the sentences you provided, along with explanations of the grammatical rules applied:

1. If you drive along the river bank, it will be twenty miles out of your way.

   • Explanation: This is a First Conditional sentence. It talks about a real possibility in the present or future. The structure is:
     If + present simple, will + base verb.

2. If you take your mobile phone into class, it must be turned off.

   • Explanation: This is a conditional sentence that expresses a rule or obligation. The structure uses If + present simple, must + base verb to indicate necessity.

3. We do not use calculators when we write a test.

   • Explanation: This is a general rule or habitual action, so the present simple tense is used for both verbs. The structure is:
     Present simple (negative) + when + present simple.

4. If you push this button, the volume will increase.

   • Explanation: This is another First Conditional sentence, describing a cause-and-effect relationship in the present or future. The structure is:
     If + present simple, will + base verb.

5. If you close the door, it locks automatically.

   • Explanation: This is a Zero Conditional sentence. It describes a general truth or automatic result. The structure is:
     If + present simple, present simple.

6. I wear my old boots when I work.

   • Explanation: This expresses a habitual action, so the present simple tense is used. The structure is:
     Present simple + when + present simple.

7. When I cook salads, I use only olive oil.

   • Explanation: Another example of a habitual action or personal preference. The present simple tense is used for both actions. The structure is:
     When + present simple, present simple.

8. When I concentrate, please do not make so much noise.

   • Explanation: This is a polite request in the context of an action. The main clause is in the imperative form, while the dependent clause uses the present simple to indicate a specific condition. The structure is:
     When + present simple, imperative form.

9. Unless prices rise, it will not be a good investment.

   • Explanation: The word unless is a negative conditional that means "if not." This is a First Conditional sentence. The structure is:
     Unless + present simple, will + base verb.

10. Unless someone asks you politely, refuse to do anything.

    • Explanation: Again, unless is used to indicate a negative condition. The structure is:
      Unless + present simple, imperative form.

Summary of Key Grammar Rules:

• First Conditional: Used to talk about real possibilities in the present or future.
  Structure: If + present simple, will + base verb.

• Zero Conditional: Used for general truths, facts, or automatic results.
  Structure: If + present simple, present simple.

• Unless: Means "if not" and is used in conditional sentences.
  Structure: Unless + present simple, will + base verb.

• Present Simple: Used to describe habits, routines, general facts, or rules.

These rules and examples are fundamental for understanding English conditionals and habitual actions.