题目内容：

Today is Sunday.My friends Bai Feng,Lin Bin,Wang Xiaoming and other two boys ask me to go swimming with them.Soon we get to the river.They jump into the river and start to swim,but I can't swim.I just sit under a big tree and watch a little girl play with a ball,but the ball falls into the river.The girl wants to get it and falls into the water,too.
I stand up and call for help,but mt friends are far from me.So I jump into the river.I don't know how to swim in it,but I take the gilr out of the river.Her parents come and thank me nery much.They say,"You are a good boy "
When my friends know this ,they all say,"You can swim now."
根据短文内容,判断下列句子的正误(T/F)
Three friends go to weim with the writer on Sunday.
The writer doesn't swim with his friends bacause he can't swim
When the girl plays with the ball,the writer is under a tree.
The writer jumps into the river at once after the girl falls into the river.
The writer asks his friends for hrlp and they take the firl out of the river.