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.
B.
Periods and commas always go inside the quotation marks.
Answer:
-The captain was requested by him
-in
-The boy heard his mother say, "Have you lost your mind?"
-Something that is a synonym to Largest
Explanation: