"a. After the rain ended, the sky became blue" would contain an independent clause and a dependent clause, which makes it a complex sentence, since the latter half wouldn't be the same without the former half.
I cant really help, I have the same problem but hopefully you did okay.
Beah and his companions experience hunger and thirst the likes of which none of them had encountered before. They scavenge abandoned farms and even stooped to assaulting a little boy who had two boiled ears of corn to himself. The boy’s parents, rather than confronting the young men, instead give them each an ear of corn; Beah assumes pity saved them from punishment. Beah feels guilty about their pillage, but accepts that they had no other option.
Answer:
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btw which grade are you in?