@Emily2122 it varies from PT to PT, but I think focusing on the overall point the author is making in the first read-through, along with noting the various perspectives/positions, helps a lot!
Giselle: The government should raise tax on gasoline ... using gasoline.
Antione: The government shouldn't do so because ... gasoline users and if the government would like to increase its ...
Also Antoine's C is the government shouldn't raise tax because (1) it is not fair and (2) to be fair you have to make everyone suffer from tax increase and not just gasoline users.
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C: Delete material unfavorable to government, it is unethical. Wrong conclusion ... that it is not the government, although they do not mislead ...