[ Grammar for TOEFL ]
There are geographic, economic, and cultural reasons why _____ around the world.
A. diets differ
B. do diets differ
C. are diets different
D. to differ a diet
Select your answer:

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Grammar › ViewGeorge wishes he …. a musical instrument when he was younger.
A. took up
B. had taken up
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The Past Simple › View
His father ______ (take) a photo of her every day.
A. took
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