语法填空(根据所给提示的正确形式填空)
I am going to tell you something __ _________(interest). Last weekend we_______(go) on a trip to Mount Tai. On Saturday we _______(fly) to Tai’an, a city at the foot of the mountain. At about two o’clock early next morning, we began to ________(climb) the mountain. It took us more than three _______( hour) to reach the top. “__________(Luck)! The sun is going to rise(升起)!” somebody shouted. Soon a big, red ball was rising_ ______(slow) from the sea. A few minutes later, all the world became bright. We stayed on the topa___  had a good time. After we went down. We ______(arrive) at our hotel at about four in the afternoon. Though we were _______(累的), we were very happy.