单项填空；选择最佳*。—DoyouknowMary?—Yes,Maryis
问题详情：单项填空；选择最佳*。—DoyouknowMary?—Yes,Maryis______girl,butsheknowsalotaboutscience.A.aeight-year-old B.aeight-years-oldC.aneightyearsold D.aneight-year-old【回...
问题详情：单项填空；选择最佳*。—DoyouknowMary?—Yes,Maryis______girl,butsheknowsalotaboutscience.A.aeight-year-old B.aeight-years-oldC.aneightyearsold D.aneight-year-old【回...