看图片，选择正确的单词补全对话，只写序号。 A. mother B. big C. thin D. little A: Look at the father panda. It's 1. ________ . B: And this is the 2. ________ panda. It's very fat. A: Look! The baby panda is 3. ________ . B: Yes, it is. And Look at the sister panda. It's very 4. ________ .
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