I went to Beijing (
during ) last summer holiday. My classmates and I flew there.(建议改成went by plane.)
First,we walked up the Great Wall. And we took photos of ourselves.Second (尽量改成then),we visited the Palace Museum.We stayed there for only one hour.At last(in the end),we ate the (a) Beijing roast duck.It was very delicious.I had a good time.I want to go there again and again.