用英语写一写你参加过的一次运动，把时间、地点、人物、经过写清楚。50个单词左右。

一次运动.
英语短文：
My friend, Mark, and I went to the sports center to play badminton at last Sunday afternoon. We booked the court in advance by paying a discount fee for student. Both of us are good at playing badminton as we started playing it at age of 6. Our play was attracted by two girls who were playing at the court next to us. They asked if they could join us. Of course, they could! We were then playing a mixing double. All of us enjoyed our time!

Last year,my college took me to a special activity.We drove a group of mentally retarded children to a zoo.There,they watched a dolphin showCamping on the grass...... My college took lots of photos of them.Maybe they don't know as much as normal people do,Maybe they're not as flexible as normal people,But their feelings are so real,They're really happy and really enjoy that trip.