" where did you go last night?" his father asked him. => His father asked " I shall return books tomorrow, " she said => She said " I hear you got the first prize. Congratulation!". She said to me => She congratulated

`1`. His father asked him where he had gone the previous night.

`-` Câu tường thuật: Wh-question: S+ aksed+ O+ wh-question+ SVO

`-` Đôi ngôi: you `->` he

`-` Động từ lùi thì: did you go `->` he had gone ( QKĐ `->` QKHT)

`-` Trạng từ: last night `->` the previous night/ the night before 

`2`. She said that she should return books the next day.

`-` Câu tường thuật: Lời nói: S+ động từ tường thuật+ O+ that{ SVO

`-` Đổi ngôi: I `->` she

`-` Động từ lùi thì: shall `->` should

`-` Trạng từ: tomorrow `->` the next day/ the following day/ the day after 

`3`. She congratulated me that she heard I had got the first prize.

`-` Câu tường thuật: Lời nói: giống câu `2`

`-` Đổi ngôi: I `->` she, you `->` I

`-` Động từ lùi thì: hear `->` heard, got `->` had got