1. 和我不一样，她对英语很精通。
Incorrect: Different from me, she is proficient in English.
Correct: Unlike me, she is proficient in English.
2. 莫妮卡，借我点钱吧，比方说500美元。
Incorrect: Lend me some money, for instance 500 dollars, Monika.
Correct: Lend me some money, say 500 dollars, Monika.
3. 去年夏天我本想去欧洲，但费用太高于是放弃了。
Incorrect: I wanted to go to Europe last summer, but it was too expensive so I gave up to go.
Correct: I wanted to go to Europe last summer, but it was too expensive so I gave up the idea.
4. 我就是这样做的。
Incorrect: This is the way how I did it.
Correct: This is how I did it. or This is the way I did it.
5. 我来这儿的路上遇到了交通事故，所以迟到了。
Incorrect: There was a traffic accident on my way here. It is why I was late.
Correct: There was a traffic accident on my way here. That is why I was late.
6. 他们不理解我的想法。
Incorrect: They didn't understand my mind.
Correct: They didn't understand what I was thinking.
7. 无论是他们还是我都不对这个错误负责。
Incorrect: Neither they nor I are to blame for this mistake.
Correct: Neither they nor I am to blame for this mistake.