Once there were several s 1. in a forest. They were trying to study the rarest animal in the world. No one had seen it,so everyone was 2. (excite) and wanted to be the 3. (one) one to photograph and study it.

The animal only came out at night,4. the scientists did some other studies in the day. Among them,there was a famous scientist named Walter. Every day,he would spend an hour 5. (sit) at the desk and putting all his 6. (設(shè)備) in the right place. He did this carefully. But other scientists laughed at him because they thought Walter was just wasting time.

One night,the animal a 7. suddenly. The scientists h8. its call. But the call didn’t last long. The animal was 9. (fright) by the noises 10. (make) by the scientists while they were scrabbling (忙亂地找) for their cameras and notebooks

O11. the next morning,the scientists compared their findings. Some bad tied to record its call,o12.had noted down how it moved,and the 13. (luck) one had e14. photographed parts of its tail and legs. They all congratulated each other what they had found. However,when they saw w15. Walter had,they were very 16. (surprise) . He had t17. several complete (完整的) photos,the record of the 18. (animal) cry and notes about the animal.

They ran to congratulate Walter. They now understood the 19. (important) of keeping things in o20.. Because of that,Walter could find everything quickly in the dark.

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