题目内容
【题目】We basketball on the playground when it to rain．
A. played, began B. were playing, began C. played, was beginning
【答案】B
【解析】
句意“当天开始下雨时，我们正在操场上打篮球”。根据句意可知，开始下雨的时候正在打篮球，而开始下雨用一般过去时，打篮球用过去进行时，故选B。
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题目内容
【题目】We basketball on the playground when it to rain．
A. played, began B. were playing, began C. played, was beginning
【答案】B
【解析】
句意“当天开始下雨时，我们正在操场上打篮球”。根据句意可知，开始下雨的时候正在打篮球，而开始下雨用一般过去时，打篮球用过去进行时，故选B。