Answer:
1. wrong because it doesn't need the did.
2. Correct
3. Correct I think.
4.Correct
5. Correct but it could be more specific
6. Correct
7. Wrong. "The policeman told Marwa not <em>to drive that fast"</em>
8. Wrong, Salim asked Omar, "Did you get the job?"
9. Wrong. Khalifa asked Osama, "How long it took to finish his project."
10. Correct