`34`. What subject do you like best of all school subjects?

`-` What + N + do/does + S + like + best?: thích nhất

`35`. When does Hoa Ban festival take place in the north `-` western region.

`-` When?: Khi nào?

`36`. What do they do to bring water to their rice fields?

`-` What?: Cái gì?

`37`. Why shouldn't we use chopsticks to eat spring roll?

`-` Why?: Tại sao?

Công thức thì HTĐ (V: thường)

S số ít, he, she, it 

(+) S + Vs/es

(-) S+ doesn't + V1 

(?) Does +S +V1?

S số nhiều, I, you, we, they

(+) S + V1 

(-) S+ don't + V1 

(?) Do + S+ V1? 

DHNB: always, usually, sometimes, often, never, seldom,....

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Các từ để hỏi (WH):

- What: cái gì 

- When: khi nào

- Why: tại sao 

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34. Of all school subjects, What subject do you like best?

35. When does Hoa Ban festival take place in the north - western region?

36. What do they do to bring water to their rice fields?

37. Why shouldn't you use chopsticks to eat spring roll?

`color{orange}{~LeAiFuRuiHuiBao~}`