1. The gauze formed a protective layer.
2. The psychologist will now see the patient.
3.
4.
5. The surgery was invalid.
6. The oncologist will see new patients, she has expanded her practice.
7. Five patients had urinalysis completed by the laboratory technician, this morning.
8. Doctor's diagnoses sometime vary, based on experience and training.
9. Because he is worried about recurrence.
10. The consultation with Dr. Ishmel, is important for you and I.
I don't get what's wrong with #3 and #4. Sorry, but hope this helps.