It may be obvious, but making bad choices can get you stuck in some bad situations. Sometimes when people do something, even if it's not bad, they dont consider what the consequences of thier actions may be. When you makes choices, knowing what the consequences may be can keep you out of some bad situations.
Answer:
who
Explanation:
"who" is used to a subject of the sentence
"whom" is used to an object of the sentence
e.g. I always make my friend, whom isfrom New York, laugh.
"whose" is used to an possession of a subject/ object
e.g. My friend, whose apartment is in New York, makes me laugh.
D I think beacuse he wanted to read the book
Sentiences 3 and 8 because they express emotional thought other than fact. For sentence three, using "terrible waste" can be debateable and shows more of an opinion. And sentence 8, by using "shouldn't" showing its still a posssiby something can or can not happen.