what should we do if it () tomorrow. A rains B rained

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\u5982\u679c\u9009\u62e9A\u7684\u8bdd
\u8fd9\u53e5\u8bdd\u5e94\u8be5\u662f\u662f\uff1awhat will we do if it rains tomorrow.
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\u4e3b\u53e5\u90e8\u5206\u53ef\u7528\u5c06\u6765\u65f6\u6216\u8005\u60c5\u6001\u52a8\u8bcd
\u4ece\u53e5\u90e8\u5206\u7528\u73b0\u5728\u662f\u6765\u4ee3\u8868\u5c06\u6765\u65f6

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\u5373\u662f\u5bf9\u660e\u5929\u4e0b\u96e8\u7684\u4e00\u79cd\u731c\u6d4b
\u6240\u4ee5if\u540e\u9762\u7528\u8fc7\u53bb\u65f6\u6765\u8868\u793a\u865a\u62df

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\u8bf7\u53ca\u65f6\u91c7\u7eb3\u4e3a\u6ee1\u610f\u7b54\u6848\uff0c\u8c22\u8c22\uff01\uff01\uff01

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B