问题补充：
many changes have , we should keep pace with the changes too.
A. Since; taken the place高*考*资*源*网
B. Because; taken place
C. Now that; taken place
D. As; been taken place
答案：
A. Since; taken the place高*考*资*源*网
B. Because; taken place
(答案→)C. Now that; taken place
D. As; been taken place
解析：可联系答.案.网客服索取。
