摘要： A driver should the road when driving.
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A driver should __ the road when .
A. concentrate on; drive B. concentrate in; driving
C. concentrate to; drove D. concentrate on; driving
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A driver should __ the road when .
A. concentrate on; drive B. concentrate in; driving
C. concentrate to; drove D. concentrate on; driving
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A driver should ________ the road when _________.
A. concentrate on; drive B. concentrate in; driving
C. concentrate to; drove D. concentrate on; driving
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