Напишите предложения с used to.
1. He, earn a lot of money (+)
2. He, have guitar lessons (?)
3. He, live with your parents (-)
4. He, have a lot of friends (+)
5. He, study hard (?)

1. He used to earn a lot of money.
Explanation: "Used to" is used to talk about past habits or states that are no longer true. It indicates that something happened repeatedly or continuously in the past but does not happen anymore. In this sentence, it means that in the past, he earned a lot of money regularly, but now he doesn't.

2. Did he use to have guitar lessons?
Explanation: "Used to" can also be used in the interrogative form to ask about past habits or states. In this sentence, it is asking if he had guitar lessons in the past. The use of "did" is necessary to form the question in the past tense.

3. He didn't use to live with his parents.
Explanation: When the sentence is negated, "used to" is replaced by "didn't use to." It means that in the past, he didn't live with his parents regularly or continuously. The negative form indicates a change or contrast between past and present situations.

4. He used to have a lot of friends.
Explanation: This sentence states that he had many friends in the past. It indicates a habitual action or state that was true in the past but may not be true anymore.

5. Did he use to study hard?
Explanation: This question is asking if he studied hard in the past. It implies that there might have been a change in his study habits over time. The use of "did" is necessary for the question in the past tense.