题目内容
下句中有一个错误，请改正
The train by which she was traveling was late.
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答案：by→on
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孟建平小学滚动测试系列答案黄冈天天练口算题卡系列答案题目内容
下句中有一个错误，请改正
The train by which she was traveling was late.
________________________________
孟建平小学滚动测试系列答案黄冈天天练口算题卡系列答案