题目内容

阅读下面短文,写出括号中所给词的正确形式,使短文意思完整。
     Dolphins are 1_____ (interest) animals and researchers find them smart to watch. They 2_____ (have) no
hands, but can use tools to solve problems, just like us. There is no evidence that dolphins have a language of
their own, but they can understand many sign 3_____ (language). They can respond (反应) quite 4_____
(correct) and quickly. Dolphins live in a very different world, but they are good at 5_____ (do)our "intelligent
(智能的) tests”.
1. interesting 2. have 3. languages 4. correctly 5. doing
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