—Many people talk about "Didi". I really wonder ______.
—You call to order a taxi through it on your mobile phone easily.
A. how can I use them
B. who uses them most
C. what they are used for
—Many people talk about "Didi". I really wonder ______.
—You call to order a taxi through it on your mobile phone easily.
A. how can I use them
B. who uses them most
C. what they are used for
试题篮
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