Answer:
when is the exercise done by you?
'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.
<span>1. D - "yesterday" is an adverb. </span>
Wanna see how good you are at it or not, there trynna spit some game