Question

—I ___________ a science fiction from the library．
—Really ? How long ________ it _________

A．was borrowed，has been kept	B．have borrowed，has been kept
C．borrowed，was kept	D．lent，has kept

Answer 1

B

B 句中没有明显的指过去的时间，用现在完成时，“我买了一本科幻小说”；现在完成时与一段时间连用时，要用延续性动词，buy要转换为keep“保存”。“被保存”译为have been kept，被动语态的完成时。