填空

在数学中，________表示面积，________表示体积，　　    表示半径，________表示物体的高度。列方程解应用题，________这三个字母表示未知数。

下面是一位同学在学校论坛上发的帖子。假设你是Mary， 请根据他的这三个问题给出你的建议。开头已给出，字数：70词左右 。

Dear friend, 

What a terrible day today ! This morning I was late for school again and my teacher was very angry with me. Then I found I left my math book at home. Because I played computer games too late last night, I fell asleep in class this afternoon. I didn't hear what the teacher said. I didn’t know how to do my homework. I really don't know what to do. Could you please give me some advice?

Yours,

Looking for help

参考词汇：make mistakes, say sorry to... ;  get...ready ;   listen carefully in class；                     spend more time on...；help...with..

Dear looking for help ,

Here is some advice for you .

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Yours,                      

Mary 

下面是一位同学在学校论坛上发的帖子。假设你是Mary， 请根据他的这三个问题给出你的建议。开头已给出，字数：70词左右 。
Dear friend, 
What a terrible day today ! This morning I was late for school again and my teacher was very angry with me. Then I found I left my math book at home. Because I played computer games too late last night, I fell asleep in class this afternoon. I didn’t hear what the teacher said. I didn’t know how to do my homework. I really don’t know what to do. Could you please give me some advice?
Yours,
Looking for help
参考词汇：make mistakes, say sorry to... ;  get...ready ;   listen carefully in class；                     spend more time on...；help...with..
Dear looking for help ,
Here is some advice for you .
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_______________________________________________________________________________
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Yours,                      
Mary