Nobody can learn English well he works hard on it. A. if B. when C. but D. unless——青夏教育精英家教网——

摘要： Nobody can learn English well he works hard on it. A. if B. when C. but D. unless

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Nobody can learn English well _____ he works hard on it.

A. if
B. when
C. but
D. unless

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Nobody can learn English well ________ he works hard on it.

[ ]

A. if
B. when
C. unless

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Nobody can learn English well ________ he works hard on it．

A．if

B．when

C．unless

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