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Đáp án: 1. Nam said he had been at school after 7 o'clock the night before.

 2. Thu said all the students would have a meeting the week after.

3. Phong said his parents were very proud of his good marks.

4. The teacher said all the homework must have been done carefully.

5. Her brother told her to go to the movie with her friend.

6. Hoa said she might visit her parents in the summer.

7. The teacher said we could collect old books for the poor students.

8. She said her mother didn't buy that book.

9. The boys said they had to try their best to win the match.

10. Her classmate said Lan was the most intelligent girl in her class.

Ex2: 1. They told us their friends would get the award for their highest scores.

2. He said he would go to school by bus the next day.

3. Phong said he needed to learn more vocabulary.

4. His brother told him to use his computer that day.

5. Mai told Nam she could not go to the movies with him.

6. Tom said he had already had breakfast, so he wasn't hungry.

7. I told Nick not to do it that time, he could do it the next day.

8. He told them their supervisor would be there in five minutes.

9. She told me she wanted to lend me her bike, but her brother had broken it the day before.

10. Mother said to me the sun rose in the East.

Giải thích các bước giải: - Chọn động từ tường thuật phù hợp

- Thay đổi thì về quá khứ

- Chuyển đại từ nhân xưng, đại từ sở hữu và tính từ sở hữu, tân ngữ

- Chuyển trạng từ chỉ thời gian, nơi chốn