问题补充：
The Great Wall is place that millions of people pay a visit there every year.
A. so a well-known
B. a so well-known
C. such well-known a
D. such a well-known
答案：
A. so a well-known
B. a so well-known
C. such well-known a
(答案→)D. such a well-known
解析：句意：长城是如此闻名的地方以至于每年数以百万计的人去那里参观。习惯用法是：such+ a +形容词+单数可数名词+that从句= so+ 形容词+ a+ 单数可数名词+ that 从句，well-known著名的。place是单数可数名词，因此这里用such a well-knownplace= so well-known a place，故选D。
考点: 考查固定搭配的用法。
