1. Da Nang is the largest city in central Viet Nam

- so sánh nhất tính từ ngắn vần: the+ adj+est

2. Hoi An is famous for its historic houses and building.

- be+ famous+ for: thì nổi tiếng về.

3. Is a house in the city more expensive than a house in the countryside?

- so sáng hơn tính từ dài vần: N+ more+ adj+ than+ N

4. Why is his neighbourhood great for outdoor activities?

- S+ great for+ st: Ai đó tuyệt vời cho cái gì

5. What shall we do this afternoon? 

- thì TLĐ câu nghi vấn: (Wh-question)+will/ shall+ S+ V? ( dùng shall cho tùy chủ ngữ).

Đáp án:

`1.`  Da Nang is the largest city in central Viet Nam.

`-` HTĐ ( ĐT tobe `-` CKĐ ) `:` S + is / am / are + O.

`-` So sánh nhất `:` S + be + the + short adj`-`est / most `-` long adj + O.

`2.`  Hoi An is famous for its historic houses and building.

`-` HTĐ ( ĐT tobe `-` CKĐ ) `:` S + is / am / are + O.

`-` Famous for sb / sth `:` Nổi tiếng về ai đó / cái gì đó

`3.` Is a house in the city more expensive than a house in the countryside ?

`-` HTĐ ( ĐT tobe `-` CNV ) `:` Is / Am / Are + S + O ?

`-` So sánh hơn `:` S1 + be + short adj `-` er / more `-` long adj + than + S2.

`4.`  Why is his neighbourhood great for outdoor activities ?

`-` HTĐ ( ĐT tobe `-` CNV ) `:` Is / Am / Are + S + O ?

`-` Sb great for sth `:` Cảm thấy thích cái gì đấy

`5.`  What shall we do this afternoon ? 

`-` Cấu trúc câu `:` ( Wh ) + shall + S + V + O ?

`-` DHNB `:` this afternoon