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In the morning I stood on the bridge and watched the boats .A.to pass byB.passing byC.pass byD.to be

编辑:chaxungu时间:2026-04-24 12:52:04分类:高中英语题库

In the morning I stood on the bridge and watched the boats ________.
A.to pass byB.passing byC.pass byD.to be passing by在线课程B