You will see what great benefit the puters you own can be every time we use them.
Aat
B. of
C. for
D. on
网友回答
A. at
(答案→)B. of
C. for
D. on
解析：本题考查介词。将从句what great benefit the puters you own can be变为正常语序应是the puters you own can be what great benefit。其意义是“你的电脑可能非常有用处”故用介词of。
be of great benefit（ to）（对……）很有帮助。