Is that a pen?Is that a pencil?(合并为一个选择问句)

Is that a pen?Is that a pencil?(合并为一个选择问句) Is that a pen?Is that a pencil?把两句合并为一个选择问句 Wang Fang is (te is that a pencil that is a pen This is Peter's pen and that is ( )pencil,( )a red pencil.(h Is that a pencil s___? That is a red pencil box.() That is a pencil改成一般疑问句 that is a pencil.改为复数句 Is that a pencil?和That is a pencil?有区别吗? This is a book and that is a pencil That is a pen.(变为复数)