由四舍五入法得到的近似数8.8×10³，下列说法中正确的是（　　）

下面文字，回答相关问题。

       大家认为这种改革不但对于身体健康有益，同时，对表达思想更加简练也有好处。因为大家都很清楚，我们说出一个词来多多少少都会侵蚀肺部，结果也就缩短了我们的寿命。

       ……

       这种发明还有一大好处：它可以作为一切文明国家都可以通晓的共同语言，因为各国的货物、器具大体相同或者类似，所以他们的用途就很容易了解。这样，驻外大使尽管完全不懂外国语言也有资格和外国的亲王、大臣打交道。

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。每空不多于3个单词。

    Mary has ____ cousins. They are Betty, Peter, Bill and Ann.

    Mary is ____ (old) of five. Betty is thirteen years old. She is two years younger ____Mary and one year older than Peter. Ann is the youngest and she is naughty(淘气的). When her mother asks her ____（wash） hands, he never washes them ____ (careful). She only puts her hands in the water ____ a few seconds(秒) and took them out again. Betty and Peter are good at ____(run). They also like playing basketball. Peter plays ____(good) than Betty. Bill and Mary study in ____ same school. They study in No.1 School. Both of them always get good ____ (grade).