1. Linda is keen on listening to Vietnamese folk song's melodies.

- be keen on doing sth: yêu thích làm gì

2. Making crafts help him improve his carefulness and his patience.

- Ving đứng đầu câu làm chủ ngữ

- help sb do sth: giúp ai đó làm gì

3.  Our village is much less densely populayted than your city.

- So sánh kém hơn:

+ S1 + tobe + (much) + less + (adv) + adj + than + S2

4. I can fly a kite easily on the farm and in many other places.

- can do sth: có thể làm gì

- on the farm ~ trên trang trại

5. Nam isn't good at dancing; however, he is a member of dancing club.

- be good at doing sth: giỏi về

- S + V; however, S + V: tuy nhiên

- be a member of sth: là thành viên của

 6. Some teens feel pressure because they want to fit in a group.

- Some + N(nhiều/không đếm được)

- feel pressure ~ cảm thấy áp lực

- want to do sth: muốn làm gì