`a)`

`1.` Linh told me that she would come to see me the next day

`2.` Peter told me that if I wanted to learn English, he could help me 

`3.` Anh Hong asked me if I lived there

`4.` Trang told me that I had to come that day

`5.` The man asked Mrs Mai what her sister wanted to study

*Statement:

S + said + (that) + S + V

S + said + to + O + (that) + S + V

S + told + O + (that) + S + V

*Yes - No question: S + asked + (O) + if/ whether + S + V

*Wh - question: S asked + (O) + question word + S + V

*Lùi thì:

QKĐ → QKHT

HTĐ → QKĐ

HTHT → QKHT

HTTD → QKTD

QKTD → QKHTTD

HTHTTD → QKHTTD

will → would

can → could

may → might 

must → had to

shall → should

be going to → was/ were going to

`b)` 

`1.` Football is played all over the world 

`2.` This computer hasn't been used for a long time

`3.` He was made work all day

`4.` He likes being called "sir"

`5.` Someone is wanted to take some photographs by him

QKĐ: S + was/ were + PP + (by O)

QKTD: S + was/ were + being + PP + (by O)

QKHT: S + had + been + PP + (by O)

HTĐ: S + am/ is/ are + PP + (by O)

HTTD: S + am/ is/ are + being + PP + (by O)

HTHT: S + have/ has + been + PP+ (by O)

TLĐ: S + will be + PP + (by O)

TLG: S + is/ am/ are + going to + be + PP + (by O)

Modal verb: S + modal verb (should, must, have to, can,...) + be + PP + (by O)