Einstein’s most famous theory is ______ we call the Theory of Relativity.
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what
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that
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which
D
why
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My brother never talked about climbing , because he knew that was I got injured.
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what
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when
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how
D
where
—These days I feel exhausted and lack strength.—That’s _____too much drinking and poor diet lead.
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what
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---Jack failed the driving test again． ---The question is_____ we can help him avoid making the same mistake．
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A
how
B
why
C
what
D
whom