C

    Next week is Family Learning Week and there will be many activities (活动) at schools in the city.

    There is a very interesting art class at Hadley School. Its name is "Paint with your parents". It's on Saturday, October 28th. It is for anyone with children under 16. It's a two-hour class it begins at 9:15 in the morning

    An interesting thing about this class is one of the teachers, a famous writer. Her name is J.P. Hayward She will read from her new book. Listening to her will give you ideas to use in your paintings.

    A family ticket (票) is $8. That's for four people. Anyone extra (额外的) has to pay (付费) $3.

    If you are interested in this class, please call Mr. Henry. The phone number is 456-3290. I hope you all enjoy Family Learning Week.

根据材料内容选择最佳答案。

已知a，b都是正数，化简$\sqrt{8a^{2}b}$的结果是____ 

阅读图文材料，回答下列问题。

材料一　摩洛哥是非洲经济落后，发展缓慢的国家。如图是摩洛哥位置、地形、城市分布图。

材料二　摩洛哥的阿拉伯人身材一般都很高大，男子经常穿一种袍服，头上包着一条厚厚的头巾。袍服很宽大，既可当作大衣、外套，又可当毯子和睡衣。头巾天气炎热时可防暴晒，天气寒凉时可以御寒，起风时又可防止风沙的吹袭。女子一般穿直垂脚踝的白色裙袍，整个身体，连同脸部被层层包起，只露两只眼睛。

根据句意，补全对话。

— Can I ____ you?

— Yes, I'd like a ____ of glasses.

— Here ____ are.

— Thanks.