1. Does your class have thirty students?
`=>` Are there thirty students in your class?

       +Are there + N_số nhiều...?

2. How much does a bowl of noodles cost?
`=>` How much is a bowl of noodles?

      +  How much + be + N...?
3. He often walks to school
`=>` He often goes to school on foot

      + walk = go on foot: đi bộ
4. Mr. Brown has a daughter, Hoa
`=>` Mr. Brown is Hoa's father

      + S + am/is/are... 
5. What is the length of this river?
`=>` How long is this river?

     + length (N) - long (adj)

$1,$ Are there thirty students in your class?

$⇒$ Are/Is + there + N +  ...?

$⇒$ Có ba mươi học sinh trong lớp của bạn phải không?

$2,$ How much is a bowl of noodles?

$⇒$ How much + is/are + N ?

$⇒$ Một tô mì giá bao nhiêu?

$3,$ He often goes to school on foot.

$⇒$ S + V(s/es) + by/get + mean of transportation 

*Đi bộ: go on foot

$⇒$ Anh ấy thường đi bộ đến trường

$4,$ Mr. Brown is Hoa's father

$⇒$ Ông Brown là bố của Hoa

$⇒$ S + is/are/am + Possessive Noun + Noun

$5,$ How long is this river?

$⇒$ How long + is/are +N ...?

$⇒$ Con sông này dài bao nhiêu?

__________________________

`\color{Green}{\@RiiWithShy}`