present and past in one sentence

[arzgol]

Are my sentences correct, since I use the past and the present time together?

One day, she said aloud you are still working on your project!

The surgeon operated him on Friday which is a weekday in Iran.


Thank you for your response.

[Raymott]

Is my sentence correct, since I use the past and the present time together?

One day, she said aloud you are still working on your project!
One day she said aloud, "You are still working on your project!"
One day she said aloud that I was still working on my project.

Thank you for your response.

There is no problem using those two tenses in one sentence, but this particular sentence is wrong.

[arzgol]

Can I say ''The surgeon operated him on Friday which is a weekday in Iran."?

Thank you very much for your respond.

[Barb_D]

Can I say ''The surgeon operated on him on Friday, which is a weekday in Iran."?

Thank you very much for your respond.

Please note the changes. Friday is okay but you need a comma.