八、阅读短文，回答下列问题。
Zip: Here we are at the sports meeting.
Zoom: Look! The baby kangaroo is running. Where is the mother kangaroo? What is she doing?
Zip: She's over there. She's looking at the monkey.
Zoom: I see the duck family. The mother duck is swimming. What about the baby duck? What is it doing?
Zip: It's swimming, too.
Zoom: Come on! Let's go and see.
Zip: Let's go!
1. What is the baby kangaroo doing?
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2. Is the mother kangaroo jumping?
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3. What is the mother duck doing?
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4. What is the mother kangaroo doing?
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5. Is the baby duck swimming?
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1. It's running.
2. No, she isn't.
3. She is swimming.
4. She is looking at the monkey.
5. Yes, it is.