【题目】 Although the tradition of drinking tea dates back to more than 3,000 BC in China, it was not until the mid 17'th century in the UK appeared the concept of "afternoon tea".
A. when B. where C. that D. which
在线课程【答案】C
【解析】
试题分析：考查代词。句意： 虽然在中国喝茶的习惯能追溯到公元前3000年，但是在17世纪英国出现了下午茶的时候，茶还没出现。that代指英国的下午茶。故选C。