[ Science ]
Who is was the scientist that explained gravity and motion?
A. Isaac Newton
B. Albert Eienstien
C. Ben Franklin

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Vocabulary & Grammar › ViewIf you become an _______ in a certain field, you know a lot about this field.
A. expert
B. expertise
C. heritage
D. wheat
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I’d rather you ………. James to join us yesterday.
A. didn’t invite
B. not having invited
C. hadn’t invited
D. not have invited
Grammar › ViewJason is crazy about ___ computer games.
A. playing
B. play
C. plays
D. played
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Mark the correct gender of GOOSE
A. Peacock
B. Gander
C. Rooster
D. Duck
