请各位英语大师帮小弟修改这篇英语作文（Jimmy写一封信邀请Penny周六去露营）.本人英语水平太低.Dear Penny:If you are free on saturday we will go to the camp.I hope you go to the gate of the school on saturday.at the same time I hope will have MP3 and umbrella with heavy clothes and sports shoes,not heavy skirt too.I hope you could have sandwich and drink coffic.in addition to this we hope us will on foot mountaineer.Jimmy 18/July/2012
问题描述：
请各位英语大师帮小弟修改这篇英语作文（Jimmy写一封信邀请Penny周六去露营）.本人英语水平太低.
Dear Penny:
If you are free on saturday we will go to the camp.I hope you go to the gate of the school on saturday.at the same time I hope will have MP3 and umbrella with heavy clothes and sports shoes,not heavy skirt too.I hope you could have sandwich and drink coffic.in addition to this we hope us will on foot mountaineer.
Jimmy
18/July/2012
答