If we are not the progress we have made, we will have greater success.
A. interested in
B. strict in
C. popular with
D. content with
网友回答
A. interested in
B. strict in
C. popular with
(答案→)D. content with
解析： 考查短语辨析。be interested in 对什么感兴趣，be strict in 对某事严格，be popular with 在什么当中受欢迎，be content with 对什么满足，句意：如果我们对我们取得的进步不满足，我们将会取得更大的进步。所以选D。