Đáp án:

Giaỉ thích:

`1`. `text{How many hours a night should teenagers sleep}`

Cấu trúc:

How many + Nsố nhiều + should + S + V + O

a + Nsố ít

`2`. `text{Who does Mai talk to whenever she feels anxious}`

Cấu trúc:

Who + does/do + S + V + O

Cấu trúc thì hiện tại đơn dạng V:

S + V/Vs/Ves + O

S + don't/doesn't + V + O

Do/Does + S + V + O?

`3`. `text{How often does Nam check his social media accounts}`

Cấu trúc:

How often + does/do + S + V + O

`4`. `text{Why did your sister join the volunteer club}`

Cấu trúc:

Why + did + S + V + O

`5`. `text{What was Linh's laptop used for}`

Cấu trúc:

What + was/were + S + O

`6`. `text{What did the students discuss during the workshop}`

Cấu trúc:

What + did + S + V + O

the + N

`7`. `text{How long does it take Minh to complete his daily exercise}`

Cấu trúc:

How long + do/does + S + V + O

`8`. `text{Who posted the announcement in the class group}`

Cấu trúc thì quá khứ đơn dạng V:

S + V2/ed + O

S + did not + V + O

Did + S + V + O

`9`. `text{What does Hoa prefer to staying at home}`

Cấu trúc:

What + do/does + S + prefer to + O

`10`. `text{How many students are there in the school's teenage support club}`

Cấu trúc:

How many + Nsố nhiều + are there + O

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