1. There are three people in his family.

His family has three people.

2. Does your school have twenty classrooms?

Are there twenty classrooms in your school ? (cấu trúc there be)

3. He goes to school at seven fifteen.

He goes to school at seven past fifteen. (cách nói giờ hơn) 

4. She is Nga.

Her name is Nga.

5. It is four thirty.

It is half past four. (cách nói giờ) 

6. Mr Nam is Ha's father.

Ha is Mr Nam's daughter.

7. Nga is Mrs. Lan's daughter.

Mrs Lan is Nga's mother.

8. Hung is Loan's brother.

Loan is Hung's sister.

9. It is a classroom. It is small.

It is a small classroom. (danh từ ghép từ một tính từ và một danh từ )

10. Mr and Mrs Johns have a son, Ha.

Mr and Mrs Johns are Ha's parents. 

`1`. His family has three people.

`2`. Are there twenty classrooms in your school?

`*` Giải thích câu `1;2`:

- There + to be + N : Có

$(+)$ There + to be + N + in + ...

= S + have (chia) + N.

$(?)$ Aux V + S + have + N?

= To be + there + N + in + ... ?

`3`. He goes to school at quarter past seven.

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

`4`. Her name is Nga.

- Her là tính từ sở hữu chia theo "she" -> Cô ấy ; Her + N

- name (n.) tên

`5`. It is half past four.

- four thirty = haft past four : bốn giờ ba mươi/ bốn giờ rưỡi

`6`. Ha is Mr. Nam's daughter.

- daughter (n.) con gái

`7`. Mrs Lan is Nga's mother.

- mother (n.) mẹ

`8`. Loan is Hung's sister.

- sister (n.) chị/em gái

`9`. It is a small classroom.

- Tính từ đứng trước danh từ để tạo thành cụm danh từ

- small (adj.) nhỏ

- classroom (n.) phòng học

`10`. Mr and Mrs Johns are Ha's parents.

- parents (Ns/es) bố mẹ