The book was written in easy English even primary school students could understand it.A.

问题补充：

The book was written in easy English even primary school students could understand it.

A. so; that

B. such; that

C. too; to

D. very; that

答案：

A. so; that

(答案→)B. such; that

C. too; to

D. very; that

解析：本题主要考查的such 与so的区别，such+adj+n而so+adj，故选such，后一空为such···that从句，为结果状语从句，故选B