问题描述：
英语单选-Who_you off at the airport?.
-Who_you off at the airport?
-I have no idea.Maybe i will take a taxi there by myself.
A is seeing B saw C has seen D had seen
-Who_you off at the airport?
-I have no idea.Maybe i will take a taxi there by myself.
A is seeing B saw C has seen D had seen
问题解答：
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