The coat that i put on the desk is blue.怎么看that是做宾语的?

The coat that i put on the desk is blue.怎么看that是做宾语的? The coat (that) i put on the desk is blue,这里的that可否改成which The coat (that) I put on the desk is blue.这里的that可以省略吗?为什么? The book that I put on the desk is now missing.这句对吗 The coat is mine.Lily put it on the desk.怎么合并成一句 whose coat is this CAN I put them on the desk?哪里错 Is that your pen on the desk? where the desk on ``that it is the t___ is so low that you'd better put on your coat Is that computer on the desk的答句 1Whose coat is this?Can I put them on the desk?2It's very co it is the first time that i have been here 是定语从句么?that做谁的宾语?