Answer:
Some of the girls sang their favorite song because they were having a singing contest
Explanation:
"But if that is so," he said to himself, "and I am leaving this life with the consciousness that I have lost all that was given me and it is impossible to rectify it—what then?"
We were invited to the cast party? Idk
I would suggest you choose A. Because they do help you catch a lot of grammatical errors. Hope this helps!