答案解析： [注释]scope(the area within the limits of a questions, subject ect. ; range)(活动)范围，机会，余地：The politics of a country would be outside the scope of a book for tourists.(一个国家的政治不属于旅游手册的内容范围之内。)dimension 尺寸，尺度；magnitude 大小，数量；volume 体积。均不切题，不能入选。本题译文：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。•Team leaders must ensure that all members____ their natural desire to avoid the embarrassment associated with making mistakes.