The manager was concerned to hear that two of his trusted workers .
A. are leaving
B. have left
C. were leaving
D. will leave
网友回答
A. are leaving
B. have left
(答案→)C. were leaving
D. will leave
解析：考查时态。本题中用过去进行时表示过去将来时，指按照计划安排在过去的某个时间将要做的事情。注意进行时表示将来时的时候，动词要是一些表示位置变化的动词。句意：听到两个工人就要离开的消息，经理很担心。故C正确。