The students were all standing by the swimming pool, swimming suits.
A. all of them worn
B. all were wearing
C. all of whom wearing
D. all wearing
网友回答
A. all of them worn
B. all were wearing
C. all of whom wearing
(答案→)D. all wearing
解析：考查非谓语动词和定语从句。句中有逗号，可能是非限制性定语从句，选A、B的话，是并列分句，但是没有and连接两个分句，排除A、B；选C的话，all of whom后面应该是一个完整的句子，缺少were，排除C；D项中的all指代the students，和wear是主谓关系，应该使用现在分词表示伴随状况，故选D。