We had a field trip last weekend. We decided to climb the mountain a little from the town. We started early in the morning. , there was little traffic on the road. We did some preparations(准备)at the of the mountain. My helped each other to get to the top. After having a picnic, it was getting dark. So we put up the tents and made a fire. Then we went to bed. When we up, we found it was the next morning.