原始问题：
根据以下情景，编写对话Mr. Gao plans to take the Metro to
the airport.
A: Where are you going, Mr. Gao?
B: I'm going to the airport.
A: How are you getting there?
B: I'm taking the Metro.
根据以下情景，编写对话Mr. Gao plans to take the Metro to
the airport.
A: Where are you going, Mr. Gao?
B: I'm going to the airport.
A: How are you getting there?
B: I'm taking the Metro.
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