阅读对话，回答问题。(12 分)
Tom: What animals can you see?
Tim: I can see the monkeys.
Tom: What are they doing?
Tim: They are climbing trees.
Tom: Can they swing?
Tim: Sure. What can you see?
Tom: I can see a koala bear.
Tim: What is it doing?
Tom: It's sleeping in the tree.
（1）What animals can Tom see?
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（2）What animals can Tim see?
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（3）Are the monkeys swinging?
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（4）What is the koala bear doing?
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