Dick is running fast.改为否定句是怎样的?

Dick is running fast.改为否定句是怎样的? mr lee is running very fast.(改为否定句） Dick is running fast.(改为选择疑问句） why is the man running so fast 改为同义句 ____is the man running tom is running very fast 改为感叹句 Bob is running very fast改为感叹句 Tom is running fast.改为感叹句 run fast 改为否定句 Tom is running fast 同意句 My dog runs fast 改为否定句 Dicke is running fast.改为选选择疑问句 The horse is running very fast.(改为一般疑问句)