Unit 7 It’s a dog. 习题 1、单项选择。 1. - Moo, moo! What’s it - It’s a ____. A. dog B. cow C. duck 2. - Quack, quack! What’s it - It’s a ____. A. dog B. cow C. duck 3. - Squeak, squeak! What’s it - It’s a ____. A. duck B. cow C. mouse 2、翻译下列句子。 1. Is it a cat 2. No, it is not a duck. 3. 1. It’s a dog. 4. 2. It’s a cat. 5. 3. What is it 三、翻译下列单词。 1. cat 2. cow 3. horse 4. dog 5. duck 6. hen