标签：英语四级试题下载,大学英语四级试题,英语四级真题下载,, 2017英语四级考试试题完型填空练习题库(3),
Henry's job was to examine cars which crossed the frontier to make sure that they were not smuggling anything into the country. Every morning, except at weekends, he -1- see a factory worker coming up the hill towards the frontier, -2- a bicycle with a big load of old straw on it. When the bicycle -3- the frontier, Henry used to stop the man， 大小：6.17 MB