I think the answer is by keeping his temper in check in front of Paul's father
Answer: There doesn’t seem to be any mistakes in this sentence.
Explanation:
It means true friends are hard to find but when you do find them hold them close because they're worth so much. Fake friends are literally everywhere around you and mean nothing/worth nothing.
'Before they ate a snack' is the correct answer, it is the adverbial clause of time. A cannot be correct because that is an independent clause, and adverb clause has to be dependent. B isn't a clause at all.
