原文：Where is Sally?
A:Where is .. B?
B:She is in the garden,A.
A:What's she doing?
B:She is sitting under the tree.
A:Is .. in the garden ,too?
B:Yes ,he is. He's climbing the tree.
A:I beg your pardon? Who's climbing the tree?
B:.. is.
A:What about the dog?
B:The dog is in the gardon too. It is runing across the grass. It is running a cat.
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单词：
climb：爬，攀登。
grass：草，草地。
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知识：b
what about ...?
run after. 追逐。Look, he is running after his Mum.