分类：教育/科学-外语学习
问题：Thestudentswerestandinginfrontof? 
The students were standing in front of the swimming pool,________swimming sus.A.all were wearing B.all wearing C.all of them wore D.all of whom wearingB?
回答：B
表示一种伴随状态。
这句句子若是要用作宾语从句，就要：all of whom were wearing
祝，愉快！