1. He tried to buy the company without success
-> without success : không thành công
2. If it hadn't been for his contributions, without success
-> If it hadn't been for : nếu không nhờ có
3. The old woman pleaded with the intruder not to take her money and said that it was all she had
-> plead with sb not to Vnt
4. If I were you, I would change the car immediately.
-> If I were you : nếu tôi là bạn