`1.` What does your mother do?

- What + do/does + S + do ?

-> hỏi nghề nghiệp

2. Are you keen on listening to music?

- be keen on + V_ing: yêu thích làm gì

3. He takes care of the sick people

- look after `=` take care of : chăm sóc

4. Lan's sister isn't as intelligent as her

- So sánh ngang bằng:

S + tobe/V + (not) + as + adj/adv + as+ S 

`1.`

$\text{Form:}$

`+)` What + do/does + S + do? : Hỏi về nghề nghiệp

your mother là chủ ngữ số ít

`=>` Sử dụng does

`->` What does your mother do?

`2.`

$\text{Form:}$

`+)` enjoy + V-ing: thích làm gì

`=` be interested in + V-ing

`->` Are you interested in listening to music?

`3.`

$\text{Form:}$

`+)` look after: chăm sóc

`=` take care of

`->` He takes care of the sick people.

`4.`

$\text{Form:}$

`+)` S + tobe (not) + as + adj + as + S2

`->` Lan's sister isn't as intelligent as Lan.

Chúc cậu học tốt nhé!!!