=>

I/

1. I wish I hadn't spent too much money on clothes.

-> câu ước ở quá khứ wish S had (not) V3/ed

2. Football is said to be the best game to play.

-> Chủ động: People say S is/am/are...

-> Bị động: S is/am/are said to be....

3. Tom thanked you/me for helping him.

-> thank sb for Ving: cảm ơn ai vì

4. It's a three-hour drive from Hai Phong to Ha Noi.

-> three-hour drive ~ cuộc đi xe ba giờ

5. Never before has John been so rude to anybody.

-> đảo ngữ never before has/have S V3/ed

II/

1. I am afraid that the air pollution in our city is getting worse and worse.

-> air pollution: ô nhiễm không khí

2. We can use the Internet as an effective way for self-study.

-> can V: có thể làm gì

3. We shouldn't swim in this river because its water is highly polluted.

-> shouldn't V: không nên làm gì

4. In the city there was so much traffic and noise and there was no time to relax.

-> there was ~ had

5. I will miss the train unless I leave now.

-> unless ~ if not