1. I'm interested in collecting birthday cards.

`@` be interested in + V-ing: hứng thú với việc gì đó

2. She prefers socialising with friends to watching TV.

`@` prefer + V-ing + to + V-ing: thích làm gì hơn làm gì

3. Unless you study hard, you won't pass the mid-term test.

`@` Unless + S + V, S + will/won't + V: Nếu không... thì...

4. Would you mind helping me with this exercise?

`@` Would you mind + V-ing: Bạn có phiền làm gì không?

5. Don't get too attached to your smartphone or you won't have time for your family.

`@` Don't + V + or + S + will/won't + V: Đừng làm gì, nếu không thì...

6. I really enjoy going fishing in the rural areas.

`@` enjoy + V-ing: thích làm gì

7. He used to be kind of addicted to the Net.

`@` used to + V: đã từng làm gì (và bây giờ không còn làm nữa) 

8. Let's take a break and relax for a while. 

`@` Let's + V: Hãy cùng nhau làm gì

1. I'm interested in collecting birthday cards.

- be interested in doing sth: thích làm gì

2. She prefers socialising with friends to watching TV.

- Prefer Ving to Ving: thích làm gì hơn làm gì

3. Unless you study hard, you won't pass the mid-term test. 

- Unless = If not: nếu không thì

- ĐK loại 1: 

- If + S + do/does + not + V-inf, S + will (not) + V-inf

=> Unless + S + V(s/es), S + will + V-inf

4. Would you mind helping me with this exercise?

- Would you mind + Ving? = Do you mind + Ving?

5. Don't get too attached to your smart phone or you won't have free time for your family.

- Don't + V-inf/Vinf + .... + or + S + will (not) + V-inf

6. I really enjoy going fishing in the rural areas.

- Enjoy doing sth: thích làm gì

7. He used to be kind of addicted to the Net.

- Use to do sth: đã từng làm gì

-> Hành động đã xảy ra bây giờ không còn nữa.

8. Let's take a break and relax for a while.

- Why don't we + V-inf?: Tại sao chúng ta không làm gì? = Let's do sth: Hãy làm gì