题目

选词填空，补全短文 fire  blind  clever  helpful  hear Mary has a little dog. It's very and cute. It often helps Mary because Mary is deaf and she can't . Dogs are our good friends. They can help the firefighters to save people in the . Dogs can help the policemen to catch thieves. The men can't see, but dogs can help them. So dogs are very and useful. 答案：【1】clever【2】hear【3】fire【4】blind【5】helpful

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