In my opinion, you can widen the of these improvements through your active parti

 In my opinion, you can widen the _____ of these improvements through your active participation.
A. dimension              B. volume            C. magnitude           D. scope

试题答案

D. 考查名词词义辨析。scope (活动)范围，机会，余地；dimension尺寸，尺度；magnitude大小，数量；volume体积。均不切题。句意：依我看，通过你的积极参与，你能够扩大这些改进措施的范围。