#英语##赖世雄的英语笔记#

从下面所给的四个选项中，选择可以填入空白处的最佳选项。
A “______ race” means that runners work in pairs by having two of their legs tied together, making them race with three legs instead of four.

* 本题出自《赖世雄经典英语语法同步练习册》，更多语法知识见《赖世雄经典英语语法》视频课 http://t.cn/AXhIwEiW