问题描述：
How much is the ticket to Central park?A one way
How much is the ticket to Central park?
A one way ticket_40,and you can_
another 20 for a round trip.
A.costs.pay B.cost.spend C.pay.spend D.spends.pay
How much is the ticket to Central park?
A one way ticket_40,and you can_
another 20 for a round trip.
A.costs.pay B.cost.spend C.pay.spend D.spends.pay
问题解答：
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