This is aruler.（改为一般疑问句,并作肯定和否定回答）

This is aruler.（改为一般疑问句,并作肯定和否定回答） this is a ruler in english （aruler）画线部分提问 把This is Tom 改为一般疑问句 This is his dictionary(改为一般疑问句) This is my eraser 改为一般疑问句. This is my uncle (改为一般疑问句) This is your pencil.(改为一般疑问句) This is a desk.(改为一般疑问句) This is a ruler 改为一般疑问句 this is a pencil 改为一般疑问句 this skirt is colourful改为一般疑问句 This is our headmaster.改为一般疑问句 This is a computer.(改为一般疑问句) This is my chair.(改为一般疑问句) This is my jacket.改为一般疑问句 this is my book.改为一般疑问句. This is a pen.改为一般疑问句 This is a key改为一般疑问句?