Thechildrenwereplaying

发布时间：2020-07-11 15:03:53

The children were playing games on the playground, ________ school uniforms.













A.all of them wore












B.all wearing











C.all of whom wearing











D.all were wearing

网友回答

B解析句子中没有连词，所以排除A,D；而C选项不是完整的定语从句，所以选B，用动词的ing形式。
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