Using an appropriate register No 2

1. Everyone thought the tuition was outstanding and well prepared.
2. It was not the suitable course for the beginners.
3. At the completion of the course , everyone got a certificate
4. The practical parts of the course were disorganized.
5. they publicised and presented the course inappropriately,so not many people attended,
6. It was an advantage having such an experienced teacher.
7. Unfortunately,he sometimes become irritated.
8. I would like to congratulate everyone involved.