题目内容：
15__________参考答案：
答案解析：
填空题：15__________
- 题目分类：中级
- 题目类型：填空题
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Mr．Benn could start the new job in
Mr．Benn could start the new job inA．two weeks． B．four weeks． C．six weeks．
At Town and Country Store．he deals with
At Town and Country Store．he deals withA．suppliers． B．secretaries． C．sales staf
had easily established itself as the fastest method of trave
had easily established itself as the fastest method of traveling great distances
At one time,________were the only practical way to cross the
At one time,________were the only practical way to cross the vast areas of the w
6._________
6._________