`21`. beautiful

`-` Tính từ đứng trước danh từ (danh từ "landscapes")

`-` beautiful (adj): đẹp

`22.` Living in a town is different from living in a big city.

`-` Sau to be là tính từ

`-` $different$ (adj): khác

`23.` My grandfather speaks English and Russian very fluently

`-` Sau động từ là trạng từ (động từ $speaks$)

`-` $fluently$ (adv): một cách trôi chảy

`24.` interested

`-` Cấu trúc: $#S + to be + interested in + V_ing$: Ai đó hứng thú với làm gì

`25.` Mai’s father really likes preparing breakfast for members of her family because he can cook well.

`-` Cấu trúc: $#S + like(biến đổi) + V_ing$

21. There are many beautiful (beauty) landscapes in this village, so it is extremely attractive to tourists.

→ There are many beautiful landscapes in this village, so it is extremely attractive to tourists.

22. Living in a town is _____________ (differ) from living in a big city.

→ Living in a town is different from living in a big city.

23. My grandfather speaks English and Russian very ___________ (fluent).

→ My grandfather speaks English and Russian very fluently .

24. His brother is interesting (interest) in going to the gym every morning.

→ His brother is interesting interested in going to the gym every morning.

25. Mai’s father really likes ___________ (prepare) breakfast for members of her family because he can cook well.

→ Mai’s father really likes preparing breakfast for members of her family because he can cook well.