按要求改写下列句子。
1. This is a computer game.(改写为一般疑问句)
                                                                            
2. Is that your English book?(作否定回答)
                                                                            
3. What's your name?(改写为同义句)
                                                                            
4. This is a ruler in English(就画线部分提问)
                                                                            
5. It's a ring.(就画线部分提问)