Rewrite.

9. "It's high time you did your homework, boys",said the teacher

=> The teacher told .....

11. "If I were rich, I would not have to work this hard", said Kent.

=> Kent said....

15. "You can stay here with me as long as you want", said my friend Tom to me

=> My friend....

9. "It's high time you did your homework, boys",said the teacher

=> The teacher told the boys that it was high time they did their homework.

- It's high time + S + V2/ed

-  "the boys" là đối tượng, "that it was high time they did their homework" là mệnh đề gián tiếp.

11. "If I were rich, I would not have to work this hard", said Kent.

=> Kent said that if he were rich, he would not have to work that hard.

- Điều kiện 2 : If + S + V2/ed, S + would + V

-  Kent đang diễn đạt một điều kiện giả định ("If I were rich") và hậu quả của nó ("I would not have to work this hard").

15. "You can stay here with me as long as you want", said my friend Tom to me

=> My friend Tom said that I could stay with him as long as I wanted.

- Chuyển từ giọng trực tiếp sang giọng gián tiếp

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9. The teacher told the boys that it was high time they did their homework.

-It's high time + S + V2/ed (Quá khứ giả định)

11. Kent said that if he were rich, he would not have to work that hard.

- Câu điều kiện loại II (giả định hiện tại)

- If + S + V2/ed, S + would + V (bare infinitive)

15. My friend Tom told me that I could stay there with him as long as I wanted.

- Trực tiếp: "S1 + say(s) + to + O + ‘...’"

- Gián tiếp: "S1 + told + O + that + S2 + V (lùi thì) + ..."

- Chuyển lời nói trực tiếp thành gián tiếp.