The sun is so far away__it is impossible for us to measure it in miles

题目

The sun is so far away__it is impossible for us to measure it in miles
A.as B.and so C.that D.so that

答案

so.that.
句型,意为：太.以至于.
原句意思：太阳离我们太远了以至于我们不可能用米这个单位来测距离