Respuesta :
Sentence 1: People know that taking tests is hard, but they will get better grades by studying.
Sentence 2:
I learned this lesson when my friend and I studied all afternoon, then aced our final exam in biology.
Sentence 3:
I suggest that if someone wants to do well, one should try studying, too.
Sentence 4: In my opinion, scoring well on it is all about how I prepare.
Sentence 1:change "you" to "they"
Sentence2:Change "me" to I
Sentence 3: change "they" to "he or she"
Sentence4: change "it" to a" test"