`1`. This box has twenty packets of tea. 

`-` There are twenty packets of tea in this box.

`-` S + have/has... = There + be...

`2`. What is the price of the two notebooks?

`-` How do the two notebooks cost?

`-` What + be + the price of + something...? = How + do/does + S + cost...?

`3`. Phong has a sister, Nhung. 

`-` Phong is Nhung's brother.

`-` brother >< sister: anh/em trai >< chị/em gái

`4`. He goes to work at seven fifteen. 

`-` He goes to work at quarter past seven.

`-` seven fifteen = quarter past seven: bảy giờ mười lăm

`5`. Does your school have over eight hundred students?

`-` Are there over eight hundred students in your school?

`-` Do/Does + S...? = (be) + there...?

`6`. That motorbike belongs to Mr. Trung.

`-` That is Mr. Trung's motorbike.

`-` Cấu trúc: something + belong to + S = something + be + S

`7`. There are four people in her family.

`-` Her family have four people.

`-` There + be.... = S + have/has...

`8`. My brother is driving to work now.

`-` My brother goes to work by car.

`-` driving = go by car.

`9`. Huyen walks to school everyday.

`-` Huyen goes to school on foot everyday.

`-` walk = go on foot.

`10`. Does your school have over `800` pupils? 

`-` Are there over `800` pupils in your school?

`-` Do/Does + S...? = (be) + there...?

`11`. You have `6` children.

`-` There are `6` children in your family.

`-` Cấu trúc: S + have/has + something = There + be + something...

`12`. How much is a bowl of noodles?

`-` How much does a bowl of noodles cost?

`-` Cấu trúc: How much + be + something...? = How much + do/does + something cost...?

`13`. What is the price of a cake and an orange?

`-` How much do a cake and an orange cost?

`-` Cấu trúc: What + be + the price of + something...? = How much + do/does + something...?