如题所述
第1个回答 2015-05-06
When I was walking in the street, it began to rain.
第2个回答 2015-05-06
When I was walking in the street, it began to rain.
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第3个回答 2015-05-06
While I was walking in the street, it began to rain.
第4个回答 2015-05-06
when i'm walking in the street ,it start rain