Writers often divide proofreading into two phases. What are those phases?

First, check for spelling mistakes and sentence-level errors. Second, check for punctuation errors and typos.
First, find punctuation errors. Second, find spelling mistakes and sentence-level errors, and typos.
First, discover typos. Second, discover spelling mistakes, sentence-level errors, and punctuation errors.
First, look for sentence-level errors. Second, look for spelling mistakes, punctuation errors, and typos.

in this passage from chapter 6 of "animal farm", by george orwell, what the author is ridiculing in this passage is the frivolity of some rules.

clover, the mare, believes she remembers that the fourth commandment forbade sleeping in beds because it was something that humans did. snowball, napoleon, and the pigs are brain-workers who look after the welfare of the farm. they are the obvious leaders because they are smart, and so they are entitled to eat the best food and sleep in beds. it is squealer, who says these lines making the difference between sleeping with sheets, what humans do, and sleeping in beds, what pigs do. the unwillingness to question authority makes the oppressed to obey without thinking.

d. lennie pats too hard, and then panics.

are you kidding? from that description of two mansions, you can't figure out which one is bleak and desolate? maybe you should consider looking those words up in a dictionary, if you don't know what they mean already.