Unit2 Robots
单元测试
一、选择填空
A)单项填空
( ) 1. They
have to work at once, _____?
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A. can they
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B. can’t they
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C. don’t they
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D. haven’t they
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( ) 2. I
don’t know if he _____ me if he _____ free.
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A. will help; will be
C. will help; is
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B. helps; is
D. helps; will be
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