The best time to determine voice & tone in writing is when you are in the beginning/middle of the passage/book/article because you will see what the author is going to talk about and then how he feels about it.
C. No capitals must be used after semi-colons. Also a noun ending with an 's' should not uses another 's' after an apostrophe. So it cannot be: The two girls's. It can only be: The two girls'
