`15.` Do you live in this flat?

`-` HTĐ: `(?)` Do/does + S + V_inf + O?
`16.` I live in the house in this city

`-` HTĐ: `(+)` S + V(s/es) + O
`17.` My brother's favourite food is fish

`-` one's favourite food + tobe + N: món ăn yêu thích của ai là ...

`-` HTĐ: `(+)` S + am/is/are + N/adj

`18.` She lives in a big flat in a city

`-` HTĐ: `(+)` S + V(s/es) + O

`-` she + Vs/es

`19.` He plays table tennis on Sundays

`-` on + day

`-` play table tennis: chơi bóng bàn

`20.` I was at the zoo yesterday

`-` yesterday `-` QKĐ

`-` QKĐ: `(+)` S  + was/were + N/adj

`15`.

`->` Do you live in this flat?

 Cấu trúc:

`@`  `(?)` Do/does you live `+` giới từ (in,on,at) `+` noun?

`16`.

`->` I live in the house in this city. 

Cấu trúc:

`@` `(+)` S `+` V(s/es) `+` noun.

`17`.

`->` My brother's favorite food is fish.

Some one's favorite food: Món ăn yêu thích của ai đó

Cấu trúc:

`@` `(+)` S `+` be(am/is/are) `+` Noun/Adj

`18`

`->`  She lives in a big flat in a city.

Cấu trúc:

`@` `(+)` S `+` V(s/es) `+` in/on/at `+` Noun `+` in/on/at `+` Noun

`19`

`->` He plays table tennis on Sundays.

Cấu trúc:

`@` `(+)` S `+` V(s/es) `+` Noun `+` on `+` Day.

`20`.

`->` I was at the zoo yesterday.

Đây là câu quá khứ

Cấu trúc:

`@` `(+)` S `+` Be(was/were) `+` in/on/at `+` Noun `+` Time.

`\color{red}{\text{Anime}`