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Explain the difference between do vs does like: do something do this does something do this

Read the excerpt from "declaration of conscience" by margaret chase smith. the exercise of these rights should not cost one single american citizen his reputation or his right to a livelihood nor should he be in danger of losing his reputation or livelihood merely because he happens to know someone who holds unpopular beliefs. who of us doesn't? otherwise none of us could call our souls our own. otherwise thought control would have set in. this excerpt contains an example of

Read the dialogue from act ll scene iv of romeo and juliet. which word from the conversation best the reader understand the mood of the scene?