It was at the airport _____ was completed last year _____ he worked as a volunteer helping foreigners in need of translation service.

A．which; where

B．that; where

C．which; that

D．where; what

由于不知道信用卡透支，收到银行催款信件去ATM自助取款机查询时，卡被取款机没收，该如何还款？