语音知识。从下列每组单词中找出一个划线部分不同于其他三个的选项。
There was a _____ rain yesterday evening. It rained ________.
There is _____ river at the foot of the mountain(山). _____ river is dangerous.
--- _________are you late for school? ---Never.
—______ English can you speak?—Only a little.
March is _____ month of the year.
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