【题目】Before you set out on a long journey, you'd better make sure that your car is ________.
A.by orderB.on order
C.out of orderD.in order
在线课程【答案】D
【解析】
考查介词短语辨析。句意：在你长途旅行出发之前，你最好确定你的车是否完好无损。A. by order奉命，按订单；B. on order在订购中；C. out of order发生故障；D. in order整齐，状况良好。旅行之前是确认车况是否良好，故选D。