题目内容
You must stand ________ line when you are waiting ________ a bus．
- A.on; in
- B.in; for
- C.in; on
- D.on; for
B
解题指导：前半句考查短语stand in line．wait是不及物动词，表示“等车”或“等人”时必须用wait for．
解题指导：前半句考查短语stand in line．wait是不及物动词，表示“等车”或“等人”时必须用wait for．
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