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：学生作业帮助网 编辑：作业帮 时间：2024/05/17 03:31:57

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