修改病句。1．我因为失去了一个奖杯，但收获了同学的友谊，收获了宝贵的真情。

Question

修改病句。     
1．我因为失去了一个奖杯，但收获了同学的友谊，收获了宝贵的真情。 
                                                                                                                                              
2．书是全部一切知识智慧的源泉。 
                                                                                                                                               
3．清晨走进校园，我便看到同学们在操场上打排球和朗朗的读书声。
                                                                                                                                                
4．王老师给小刚同学买了铅笔、橡皮、文具盒和小汽车等学习用品。
                                                                                                                                                 

Answer 1

1．把“因为……但……”改为“虽然……但是……”     
2．“全部”“一切”二者重复删其一留其一即可。    
3．把“和”改为“听到”  
4．把“小汽车”改为其他学习用品，或把“和小汽车”去掉