阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Journey to the Center of the Earth spoke of a trip to the centre of the earth through a volcano in Iceland. When Professor Otto Lindenbrock， his nephew and the guide they hired 61.　　　　　 (reach) the volcano， they journeyed underground through a small cave. After many days， they came to a vast room 62.　　　　　 a large ocean inside. The three men built a small boat and set sail. 63.　　　　　 (sudden)， two dinosaurs rose to the surface and began to fight each other. The small boat was almost sunk by the dinosaurs 64.　　　　　 they were able to get away.
They sailed to shore and explored the forest. They came across huge insects and many strange 65.　　　　　(creature). As they were wandering around, they noticed a man sitting against a tree in the 66.　　　　　(distant)—he was at least four meters tall. The men became afraid， and ran back to the boat.
The boat floated（漂） down with the water 67.　　　　　 they could only hold on to the boat in terror（恐惧）. Finally， they reached the bottom of the hole. Then the water began to push them up. They floated upwards for miles. The water rushed beneath them， 68.　　　　　 (push) them out into the sunlight. They now found 69.　　　　　 (they) in a volcano in Italy—their adventure was over， but a new one was about 70. 　　　　　(begin).
61.reached　考查时态。
62.with　考查with复合结构。根据句意：他们来到一个巨大的房间，里面是一片浩瀚的海洋，with a large ocean inside作a vast room的定语。
63.Suddenly　考查副词。
64.before　考查连词。before they were able to get away在句中作时间状语。
65.creatures　考査名词复数。
66.distance　考査名词。in the distance在远处。
67.and　考査并列连词。
68.pushing　考查现在分词。pushing在句中作结果状语。
69.themselves　考查反身代词。find oneself in a volcano in Italy发现自己处于某种状态。
70.to begin　考查动词不定式。be about to do 表示“即将、正要做某事”。