[ Vocabulary & Grammar ]
My mother buys blueberries very often, and she thinks the ____________ they contain can improve our eyesight.
A. products
B. substances
C. convenience
D. environment

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Grammar › ViewWhen I was a kid, I ____ believe that my dad wasa spy.
A. would
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Two is company and three is a ___.
a. cloud
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Do you have a free access ___ this site?
A. at
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The anti- smoking campaign had quite an impact _____________the young.
A. On
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