They explained the situation to the steward, who brought over some water. He told them that he______on the route for twenty-five

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问题 They explained the situation to the steward, who brought over some water. He told them that he______on the route for twenty-five years.

选项 A、works
B、worked
C、has been working
D、had been working

答案D

解析 在间接引语中,主句用过去时,从句视情况用过去时、过去将来时、过去完成时或过去完成进行时,这样便排除了A、C;句中有时间状语for twenty-five years,所以不能用过去时。用过去完成进行时表示"已经飞行了15年,并且还要继续下去"的含义。
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