Help with English, need help with correcting mistakes in the sentences.

1. The first time I met Sam, he was reading the book about multiple intelligences.2. I enjoy documentaries about famous people more than documentaries about the environment.3. The exam was so difficult that I will probably get bad results.4. In general, training as a nurse is not more difficult than studying medicine.5. His performance wasn't good enough that day to win the final of the tennis tournament.Чи можно дякую?