$\begin{array}{c} \color{#db1616}{\texttt{#Loveyourself}} \end{array}$    

`a,` What is Tom's favourite subject?

`->` His favourite subject is Art

`b,` What are Tom's and Peter's favourite subjects?

`->` Their favourite subject are natural science

`c,` Do they like Vietnamese?

`->` No, they don't

`----------`

`@` Wh_q + tobe + S + ... ?

`->` S + tobe + ...

`@` Wh_q + do/does + S + V(bare) + O?

`->` Yes, S + do/does 

`->` No, S + don't/doesn't

`----------`

`-` What + tobe + one's favourite subject

`->` One's favourite subject + tobe + ...

`a,` What is Tom's favourite subject ?

- His favourite subject is art

`b,` What are Tom's and Peter's favourite subject ?

- Their favourite subject are natural science

`c,` Do they like Vietnamese ?

- No, they don't

__________________________________

`@` What + am/is/are + sb's + favourite subject ?

- Tính từ sở hữu/Sở hữu cách + favourite subject + am/is/are + N(subject)

- I + am

- He/She/It/Số ít + is

- You/We/They/Số nhiều + are

`@` HTĐ - NV : Do/does + S + Vbare-inf ... ?

- Yes, S + do/does

- No, S + do/does + not

- I/You/We/They/Số nhiều + do

- He/She/It/Số ít + does