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Look out when crossing the road, _____ you may be hit by a car.
A.orB.andC.soD.but
A

试题分析:考查固定句式。固定句式:祈使句+连词+陈述句;该句型就相当于一个条件句。如果转换成的条件句表示否定的意思,原句就要使用or;如果转换的条件句表示肯定的意思,原句就使用and;本句="If" you don’t look out when crossing the road, you may be hit by a car.故A正确。
点评:固定句式祈使句+连词+陈述句;该句型就相当于一个条件句。如果转换成的条件句表示否定的意思,原句就要使用or;如果转换的条件句表示肯定的意思,原句就使用and;
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