根据提示，写一篇短文介绍你的同学李刚。80字左右。
提示：
李刚，出生在富裕的家庭。
过去：把零花钱花在零食和游戏上。学习不认真，家长和老师为他着急。
现在：他发生了巨大的变化，努力学习，积极参加慈善活动，捐款给慈善机构，帮助需要帮助的人。
变化的原因：去年夏天，他去了一个贫困的地方，并在那儿生活了几天，他了解了贫困孩子的生活和学习，许多孩子由于没钱不能上学，而只能去劳动，这次经历深深的影响了他。
My classmate, Li Gang                                                
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

--- The presidents of China and Russia had ____ interview a short time ago .
--- And it was ____ great success. .

A．an ;the

B．the ;a

C．an;a

D．the ; /

--- The Greens have gone to Yangzhou for a trip, haven’t they ?
---____ , and they will return tomorrow afternoon.

A．Yes, they have

B．No, they haven’t

C．Yes, they haven’t

D．No, they have

--- I hear Andy and Lily are going to have a party to celebrate their ten years of ____ .
--- Really? They have ____ for ten years?

A．marrying, married	B．marriage, married
C．marrying, got married	D．marriage, been married

--- What about yesterday’s homework, Amy?
--- I found ____ hard to finish all the exercises.

A．it

B．it’s

C．that

D．that’s

--- When did you get to know the information?
--- ____  I ____ yesterday.

A．Until, told

B．Not until, told

C．Until, was told

D．Not until, was told

--- Nancy, you are going to buy a flat here, aren’t you ?
--- Yes, but I can’t ____ an expensive one .                                

A．spend

B．afford

C．pay

D．cost

--- ____homework is required for a middle school student every day ?          
---About two hours .                                            

A．How much

B．How many

C．How long

D．How often

---Why does Kate look so ____ ?
---Because her father was hit       when he went to work .

A．happy, by car

B．unhappy, by car

C．happy, by a car

D．unhappy, by a car

--- A new book on how to prevent floods and droughts is ____ soon.   
--- Really ? I can’t wait to read it.    

A．giving out

B．coming out

C．working out

D．selling out