Answer:
1. Dr. Martin-Smith is our principal, and Ms. Higgins is our assistant principal.
2. I did the best on my project, so I received a good grade.
3. I felt sick today, so I went to see the doctor.
4. Today is school picture day, so I wore my favorite shirt.
5. I've always wanted to be a dentist, so I started working a in dentist's office.
6. Monday was a holiday, so we only had four days of school this week.
7. I did not complete my reading log this week, so I had to sit out at recess.
8. I follow the seven habits, so I am a good citizen.
9. Our class got several compliments, so we get a compliment party.
10. Always do your best, and you will succeed.
Step-by-step explanation:
Always put a comma before adding a conjuction.
Also, compound sentences are two independent clauses joined to make one sentence.