单选题 The boy fell in front of the car but fortunately the driver stopped ______ time.
【正确答案】 D
【答案解析】习语辨析题。on time意为“准时”;in time意为“及时”。本句大意为:小男孩在小轿车前摔倒了,但幸运的是司机及时刹住了车。