高中英语翻译（用定语从句翻译）

1. I have never been to Dalian, which is said to be a very charming city.
2. The car ran into a group of middle school students, two of whom were sent to hospital at once.
3. The machine still works well, which I have used fo many years.
4. Please accept our sincerest apology.
5. These university proffessors have opinions of their own.

I have never been to Dalian,which is said to be a fascinating city.
The car rushed to the crowd of students,two of whom were sent to the hospital immediately.
The mechine which I have been used for many years is still run well.
Please accept our apology which is the most earnest（ 诚挚的）。
These professor who in the university are of their own opinions.

I have never been to Dalian which is said to be a charming city.
This vehicle ran into a group of middle school students, two of whom were sent to hospital immediately.
this machine which i have used for many years still runs well.
please accept our sincere apology.
these college professors have opinions of their own.

I have never been to dalian, said it was very charming city.
The car ran into a group of students, including two were rushed to the hospital.
This machine is still running very well, I have had it for years.
Before accepting our sincere apologies. (apology)
These university professors have their own opinions. (its)