There are pine trees ____ the eye can see.

題目：

There are pine trees ____ the eye can see.
A.as large as B.so far as C.as far as D.farther than
爲什麼選

解答：

選C as far as意思說是在眼睛所能看到的範圍內
B so far as 是只要的意思.其他的詞不符合句意.