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1 .______

A scientists B humans C plants D animals

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2 .______

A insects B birds C fish D snakes

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3 .______

A effect B affect C effected D affected

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4 .______

A because B for the reason that C because of D since

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5 .______

A months B days C minutes D weeks

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7 .______

A prevented from B ordered by C helped by D intruded on

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8 .______

A and B but C therefore D however

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9 .______

A portions B parts C sections D kinds

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10 .______

A try B tries C seem D seems

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