单选题 “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

【正确答案】 C

【答案解析】【解析】考查定语从句。考查as引导的定语从句，意为：正如古语所说。