i don't know what this is.do you know who the girl standing at the door,这两个句子是宾语从句吗?

来源：学生作业学帮网 编辑：学帮网 时间：2024/06/05 18:35:56

i don't know what this is.do you know who the girl standing at the door,
这两个句子是宾语从句吗?

是的.第二句最后应加上一个is