1. This is a pencil sharpener.(对划线部分提问)    
_______ _______？  
2. That is her phone number.（改为一般疑问句）    
_______ _______ her phone number?  
3. It is an English book.（改为否定句）    
_______ _______an English book.  
4. Please call Lucy. Her phone number is 687-4564.（合并为一句）    
Please_______Lucy_______687-4564.  
5. Is that a telephone?（作否定回答）    
No,_______ _______.