摘要:Paper money was in use in China when Marco Polo visited the country in thirteenth century. A.the - / B.the - the C./ - the D./ - / 解析:答案为C.题中in use是固定搭配.意为“在使用 .use为抽象名词.其前不用冠词.后者是序数词前用定冠词the.要牢记一些固定搭配如in use.under construction.in debt.come to power.at table.out of work等.

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