请各位英语能手看一下下面的作文有没有错误.

请各位英语能手看一下下面的作文有没有错误.
I‘ve been to Beijing.It's the capital of the China and it's very big.I have seen Beijing opera I havealso taken photos of stone animals.They're so beatiful.I have already eaten roast duck and I have visited the Palace Museum.There is a lot to see and do there.
There's only one thing I haven't done yet:I haven't climbed the Great Wall.