the pen that you want is on the desk 能不能用which 为什么

the pen that you want is on the desk 能不能用which 为什么 Is that your pen on the desk? 31.The book ______ you want is on the desk.Which of the foll 选择填空1） The book ______ you want is on the desk.Which of the The book __ you want is on the desk. there is a pen on the desk? the city which she lives in is far away 为什么which不能用that? The coat (that) i put on the desk is blue,这里的that可否改成which who is the girl （that）is crying.为什么不能用which? Give me that pen._____ on the desk.A:The red pen B:A red pen 改写同义词The pen is on the desk The pen is long on the desk 和the pen on the desk is long 有什么