1. My cousin, Duy, enjoys collecting old coins. He has collected over 300 coins so far.

enjoy + V_ing

so far dhnb thì HTHT: S + have/ has + Ved/PII + O

2. Susan is not fond of cooking because she thinks it watses time.

fond of + V_ing

không có dhnb chia ở thì HTĐ: S + V(e/es) + O

3. Some people find making model interesting and helpful.

find + V_ing

interesting: thú vị

helpful: hữu  ích

4. Arranging flowers is my mother's favorite pastime.

ko có dhnb chia ở thì HTĐ nên tobe là is/ am/ are

pastime: sự tiêu khiển

5. What do you often do in this summer vacation? I learn to play new sports of musical instruments

learn + to V

6. I think in the future more people will enjoy gardening.

in the future là dhnb thì TLĐ

enjoy + V_ing

7. Peter hates painting, but his sister loves it very much.

hate + V_ing

8. I think mountain-climbing is challenging.

I think + Clause

Thấy hay thì cho mk xin ctlhn nha :3