SorryImnotsure的精選

問題詳情：-Couldyoutellme         ?   -Sorry,I'mnotsure.   A.whencanwetaketheZhengzhou-to-Jiaozuorailway   B.whenwecantaketheZhengzhou-to-Jiaozuorailway   C.whencouldwetaketheZheng...