An organized scientific study of the natural world that may include making systematic observations, asking questions, gathering information, analyzing data, summarizing results, drawing conclusions, and/or communicating results.
A. field study
B. investigation
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Grammar › ViewMy mother always _____ to work by car, but today she _____ the bus.
A. Is going / takes
B. Goes / is taking
C. Goes / take
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Vocabulary & Grammar › View
A good _________ contains a lot of vegetables.
A. snack
B. diet
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Tenses › ViewWhat I …………….. is that we …………….. to think seriously about a thorough reform in the legal system
A. have proposed / should have begun
B. had proposed / were beginning
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Mixed General Quiz › View
It’s been two years ___________ I last saw you.
A. since
B. that
C. when
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