`-` Đáp án : Mrs Nga said that she had bought a new computer for her son.

`-` Cấu trúc câu gián tiếp : S + said/told  + that  +S ( đổi) + V ( lùi thì)

I `->` She/he

We `->` They

You `->` I/he/she /they

Us `->` them

Our `->` Their

My `->` his/her

me `->` him/her

`...`

`-` HTĐ/HTTD/HTHT `->` QKĐ/QKTD/QKHT

`-` TLĐ `->` TLĐ trong quá khứ

`-` will `->` would

`-` QKTD `->` QKHTTD

" I have bought a new computer for my son", Mrs Nga said

`->`Mrs Nga said that she had bought a new computer for his son.

`_`Câu gián tiếp : S said that S ( đổi ngôi ) + V lùi thì 

`#Cam`