按要求做句型转换。
（1）She helped her mother yesterday.（变一般疑问句）
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（2）The bad man took Maliang’s paintbrush.（变否定句）
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（3）They came last week.（就画线部分提问）
                                          
（4）He is watching TV. （变一般疑问句）
                                          
（5）I went to the park.（就画线部分提问）
                                          
（6）They saw lots of flowers.（就画线部分提问）
                                           
（7）Tom broke his toy. （变一般疑问句）
                                            
（8）Linging usually plays the flute on Sundays.（变一般疑问句）
                                          
（9）Chinese people invented paper.（就划线部分提问）
                                          
（10）He will go to the zoo tomorrow.（变否定句）
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