You will see what great significance the computers we own can be___every time we use them.

问题描述:

You will see what great significance the computers we own can be___every time we use them.
A at
B of
C for
D on
为什么用of

of 和前面的 great significance 一起构成介词短语
of great significance =very significantwhat是指代那部分内容呢what 是感叹词,“多么”的意思,修饰great significance 这个名词词组, 引导宾语从句,