【单选题】Great changes _____ in prefix="st1" China in the past 30 years and many Chinese are living a happy life today. ?xml:namespace> A. took place B. were taken place C. have taken place ...
【简答题】Great changes _______(take) place in our country in the past thirty years. 2. Peter prefers to st1. Great changes _______(take) place in our country in the past thirty years. 2. Peter prefers to stay ...