The Great Wall is known as the eighth wonder of the world. Every year thousands of tourists from all over the world come to visit this place of_____ in China.
Last Saturday I went to the Great Wall _______ some of my friends. It was a sunny day. On our way up, we saw many volunteers(志愿者) keeping working in the sun. They helped the elders with their bags., ______ photos for some tourists and answered people’s questions. Though they are very _______ , they didn’t stop to have a rest. We were deeply moved when we saw this.
Just at the moment, we saw ______ little boy standing alone and crying. We went over and asked what_______ to him.  From his answer we knew that he couldn’t find his mother. We told him not to _____ about it and then we tried to get to touch with his mother with the phone number he gave us. Twenty minutes _______ , his mother turned up. When she saw her son, she was very excited and thanked ______ with tears in her eyes.
That day we not only enjoyed the beauty of the Great Wall, but also felt the warmth of the society. _______ everyone can reach out a helping hand to others, the world will be more and more harmonious(和谐的).