把课本从书店运往学校，应选用(   )

    Hi, my name is Zhao Shuo.____(this)are my two good friends:Qian jing and Tu Yue.We all like sport____(连词)we play football on Saturday.   

    My father is____(冠词)teacher at our school. Their fathers are____(policeman). Dogs can help their work. This is my father's dog.____(it)name is Xuanfeng.

有关光学元件的说法，正确的是   （     ）

在一些重要路段，威海市公安和交通部门联手张挂了这样一些标语，“喝酒过多伤身，酒后驾车要命”，“驾车容易，上路不易，且行且珍惜，”这些温馨提示都是为了保护公民的（  ）