1.He studied hard, the exam.
A.aim at
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B.aiming at passing
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C.aiming passing
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D.aimed to passing
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2.He kept a little notebook, in which the names and addresses of his friends.
A.wrote
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B.writing
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C.was written
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D.were written
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3.Do you have any idea ?is actually going on in the classroom
A.that
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B.what
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C.as
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D.which
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