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Side ASide B
easy to use; near at hand adj.
the outside edge n.
a scientific assumption n.
pretending to be what one is not n.
to come between v.
a person who worries unnecessarily about his health n.
happening before adj.; the word to which a pronoun refers n.
a choice between two possibilities n.
refusing to give up adj.
a substance which prevents infection n.
not able to be prevented adj.
substances produced by the body to prevent disease n.
speech or writing in praise of a person or thing n.