Question

【题目】— Have you ever climbed the mountain at the back of our school?— No. it's ________ high a mountain that I didn't have a try.
A.so
B.such
C.such a

Answer 1

【答案】A
【解析】句意：---你曾经爬过我们学校后面的山了吗？---没有，那么高的山我没有尝试过。句型：so+adj+a+n+that从句，如此……以至于……=such+a+adj+n+that从句，根据句中的high（形容词，高的）和 a mountain可知符合so+adj+a+n+that句型，所以答案是A。