On 5 December 2013, China Central Bank prohibited financial institutions from handling Bitcoin transactions, to regulate the virtual currency.
A. moved
B. to move
C. having moved
D. moving
网友回答
A. moved
B. to move
C. having moved
(答案→)D. moving
解析： 句意：在2013年12月5号，中国中央银行禁止一些非银行金融机构进行比特币交易, 开始管理虚拟货币。这里是伴随状语，因为China Central Bank和move是主动关系，用现在分词，选D。