1. Did I know you (already/read) this book? 2. He said that the bus (will be) here soon. 3. Have we seen our teacher

Предмет вопроса: Употребление времен
Объяснение:
1. Did I know you (already/read) this book?
This sentence is in the past simple tense, so the correct form should be "Have I already read this book?". We use the present perfect tense (have/has + past participle) to talk about an action that happened at an unspecified time before now.

2. He said that the bus (will be) here soon.
The correct form should be "He said that the bus would be here soon." When reporting speech in the past, we use the past tense of the verb.

3. Have we seen our teacher (just/go out)?
The correct form should be "Have we just seen our teacher go out?" We use the present perfect tense (have/has + past participle) to talk about an action that happened in the recent past. The verb "go" is used in the bare infinitive form after "did" or "have" in questions.

4. Did we understand the test (was) difficult?
The correct form should be "Did we understand the test? was it difficult?" The verb "be" is in the past question form, so we separate it from "Did" and place it at the end of the sentence.

5. Did I tell them I (would be leaving) for London the next day?
The correct form is already in the past tense: "Did I tell them I would be leaving for London the next day?" We use the past simple tense to talk about an action that happened and ended in the past.

6. He said he (could) do it without my help.
The sentence is correct as written. The verb "could" is the correct past tense of "can" and is used here to express ability in the past.

Дополнительный материал:
Задача: Переведите следующие предложения на английский, используя правильное время:
1. Ты уже прочитал эту книгу? Вопрос: Have you already read this book? Ответ: Have you already read this book?
2. Он сказал, что автобус будет здесь скоро. Вопрос: He said that the bus will be here soon. Ответ: He said that the bus will be here soon.
3. Мы только что видели, как наш учитель выходил? Вопрос: Have we just seen our teacher go out? Ответ: Have we just seen our teacher go out?
4. Мы поняли, что тест был сложным? Вопрос: Did we understand the test? Was it difficult? Ответ: Did we understand the test? Was it difficult?
5. Я рассказал им, что уезжаю в Лондон на следующий день? Вопрос: Did I tell them I would be leaving for London the next day? Ответ: Did I tell them I would be leaving for London the next day?
6. Он сказал, что может сделать это без моей помощи. Вопрос: He said he could do it without my help. Ответ: He said he could do it without my help.

Совет:
Чтобы лучше понять употребление времен в английском языке, рекомендуется изучить основные правила и выполнить много практических упражнений. Знание грамматических времен важно для уверенного общения на английском языке.

Задача для проверки:
Переведите на английский язык следующую фразу: "Мама сказала, что купит мне новую книгу завтра". Ответ: "My mom said she would buy me a new book tomorrow."