Was it 80 years before Christopher Columbus crossed the Atlantic ______ Zheng He hadsailed to East A...
2022-12-06 06:37:44 117次 2013-2014学年浙江省嘉兴市高一上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Was it 80 years before Christopher Columbus crossed
the Atlantic ______ Zheng He hadsailed to East Africa?
A.
when
B. that C.
after
D. since
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