44．Look out for cars the street. A. when crossed B. when crossing C. if you cr——青夏教育精英家教网——

摘要：44．Look out for cars the street. A. when crossed B. when crossing C. if you crossed D. while you are crossing

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Look out for cars ________ the street.

A. when crossed

B. when crossing

C. if you crossed

D. while you are crossing

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Look out for cars ________ the street.

A. when crossed

B. when crossing

C. if you crossed

D. while you are crossing

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Look out for cars _____ the street.

A. when crossed 　 B. when crossing

C. if you crossed 　 D. while you were crossing

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