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(19),
In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words -1- which we become acquainted in daily conversation, which we -2-,that is to say, from the -3- of our own family and from our familiar associates, and -4- we should know and use -5- we could not re， 大小：1.91 MB