1. They fancy playing batminton with their friends at weekends.
2. My best friend doesn't mind helping me with my homework.
3. Now we speak English more fluently than last year.
4. How many ethnic groups are there in Vietnam?
5. A lion runs faster than a horse.

II/
1. Minh is the tallest (person) in my class.
(câu này thì từ "person" bạn không cần ghi cũng được, hoặc có thể thay bằng mấy từ khác như "one" hay "student" bla bla)
2. She detest e-mail communication.
3. Phong walks quickly.
4. Children likes playing out doors instead of staying indoor to watch TV.

Đáp án và lời giải chi tiết : 

Bài 1 :

1. cấu trúc fancy + V_ing

=> They fancy playing badminton with their friends at the weekend.

2. My best friend doesn't mind helping me with my homework.

3. Có now => thì hiện tại tiếp diễn : Cấu trúc : S +tobe + V_ing + O

=> Now we speaking English more fluently than last year.  

4. How many ethnic groups are there in Vietnam? 

5. A lion runs faster than a horse.

Bài 2 :

1. Không ai trong lớp cao bằng Minh => Minh là người cao nhất 

=> Minh is the tallest person in the class.

2. detest + V_ing

=> She detests communicating through emails.

3. Phong is walking more quickly than his friend.

4. like + V_ing

=>Children like playing outdoors than staying indoor to watch TV.

Bài 3:

1. Nowadays children are rely on the technology than the past.

Chúc bạn học tốt !