I don't know the new bikes ________ already been _______(sell) out.

问题描述:

I don't know the new bikes ________ already been _______(sell) out.

have. sold
宾语从句用的是现在完成时的被动语态
“我不知道那些新单车都已经售完了”
请及时采纳,不懂继续问( 天天在线 )
(*^__^*) 祝学习进步! 谢谢!