16. His brother told him that he could use his computer that day.

- Lùi thì: can -> could

- Đổi ngôi: you -> he

- Đổi tính từ sở hữu: my -> his

- Trạng từ: today -> that day

17. Mai said to Nam that she could not go to the movies with him.

- Lùi thì: cannot -> could not

- Đổi ngôi: I -> she

- Tân ngữ: you -> him

18. She said she had gone to visit her brother the Sunday before.

- Lùi thì: Quá khứ đơn -> Quá khứ hoàn thành (went -> had gone)

- Đổi ngôi: I -> she

- Tính từ sở hữu: my -> Her

- Trạng từ: last Sunday -> the Sunday before.

19. They told me that he had rented a car, and they would pick me up at 6.00 that day.

- Lùi thì: Hiện tại hoàn thành -> Quá khứ hoàn thành (have rented -> had rented) ; will -> would

- Đổi ngôi: I -> he ; we -> they

- Tân ngữ: you -> me

- Trạng từ: today -> that day

20. He said his brother and he were leaving there.

- Lùi thì: Hiện tại tiếp diễn -> Quá khứ tiếp diễn (are leaving -> were leaving)

- Đổi ngôi: I -> he

- Tính từ sở hữu: my -> his

- Trạng từ: here -> there

---------------

*Tham khảo thêm:

*Câu khẳng định và phủ định: 

S + said (to)/ (told) + (O) + (that) + S + V (lùi thì)

Thì hiện tại đơn -> Thì quá khứ đơn 

Thì hiện tại tiếp diễn -> Thì quá khứ tiếp diễn

Thì quá khứ đơn ->  Thì quá khứ hoàn thành

Thì quá khứ tiếp diễn -> Thì quá khứ hoàn thành tiếp diễn

Thì hiện tại hoàn thành -> Thì quá khứ hoàn thành

Thì hiện tại hoàn thành tiếp diễn -> Thì quá khứ hoàn thành tiếp diễn

Can -> could

May -> might

Must ->  must/had to

*Đổi ngôi:

+ Đại từ nhân xưng

I -> He, She

We -> They

You -> I, we

+ Đại từ sở hữu

Mine ->  His, her

Ours  -> Theirs

Yours -> Mine, ours

*Tính từ sở hữu

My -> His, her

Ours -> Their

Your -> My, our

*Tân ngữ

Me -> Him, her

Us -> Them

You -> Me, us

*Trạng từ:

This -> That

These -> Those

Here -> There

Now -> Then

Today -> That day

Yesterday -> The day before

Tomorrow -> The day after

Ago -> Before

This week -> That week

Last week -> The week before

Next week -> The next week/ The following week

16. His brother told him “You can use my computer today”

=>His brother told him he could use his computer that day

17. Mai said “I cannot go to the movies with you, Nam”

=>Mai told Nam she couldn't go to the movie with him

18. She said: “I went to visit my brother last Sunday”

=>She said she had gone to visit her brother the Saturday before

19. They told me: “I have rented a car, and we will pick you up at 6.00 tomorrow”

=> They told me that they had rented a car, and they would pick me up at 06:00 the next day.

NT_Minh亗シ