Исправьте ошибки в предложениях. 1. lunch was being make by he

Исправьте оплошности в предложениях.
1. lunch was being make by he when we got there.
2. something must being done to solve the problem.
3. are customers be served with good food there
4. the letter hasnt received yet
5. is the dog going to take to the vet?
6. dr.brown was warned after the accident?
7. nobody has explained how the work is do.
8. a new research on cancer is carrying out.
9. some children have been punished for bulliying.
10. the lost laptop has found in the office.
11. why werent the windows clean yesterday?
12. my father is worked in an office.