1. I regretted not having studied harder for this exam

-> regret V-ing

2. If I'd caught the 10:30 train, I would have turned up on time

-> turn up = arrive

3. The fashion model is said to have been discovered while working at a restaurant

-> S tobe VPII to Vnt/to have Vnt

4. The authorities have made improvements to the public transportation system here recently

- make improvements to sth

5. I am finding it increasingly difficult to read without my glasses 

- find it adj

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3. But for his father's help, he wouldn't have succeeded in his job

- But for N : nếu không nhờ có

4. You must have been exhausted after such a long journey

-Bạn chắc hẳn đã kiệt sức sau một hành trình dài như vậy

5. There was sereve criticism of the proposals for the new motorway 

- Có nhiều chỉ trích nặng nề về đề xuất đường cao tốc mới.