Doinghom的精选

问题详情：阅读理解；阅读下面A、B两篇短文，根据短文内容，从短文后面每小题所给的四个选项中选择最佳*。Doinghomeworknotonlycanhelpchildrenmastertheknowledgetheyhavelearned,butalsocantraintheirabilitiesoffinishing...