PLEASE HELP ITS COMPOUND SENTENCE I WILL MARK U BRAINLESST

Answer:
1.Scott rose at 5 A.M and to finish his paper (correct answer is and)
2.James and Mary ignored matt's for warning (correct answer is for)
3.But the doctor did it best (Correct answer is but)
4.i-you must go now (correct answer is I)
5.The food was so rotten (The answer is so)