问题
选择题
(2013·高考新课标全国卷Ⅰ)“You can’t judge a book by its cover，”________．
A．as the saying goes old
B．goes as the old saying
C．as the old saying goes
D．goes as old the saying
答案
选C。句意：俗话说，“你不能以貌取人”。as the old saying goes是一个固定的用法，表示“俗话说”。其他的各个选项都是错误表达形式，故都可排除。