高二英语：高二英语每日一练（42）

　　The young girl sitting next to me on the plane was very nervous. She_____before.
　　A. hasn't flown
　　B. didn't fly
　　C. hadn't flown
　　D. wasn't flying
　　答案：C
　　解析：before意为“在……之前”，常与完成时连用。上句的时态是一般过去时，所以要用过去完成时，表示动作发生在was very nervous之前，因为她以前没有乘坐过飞机，所以感到紧张。