They spent time _____(swim) in the river.
问题描述:
They spent time _____(swim) in the river.
答
答案: swimming
解析: spend.... doing sth. 花时间做某事
翻译:他们花时间在河里游泳
答
swimming
答
答案是swimming
分析 spend +时间/金钱+ doing sth / on sth
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