最后他们决定自己保守这个秘密At last,they _ _ _ the secret _ _.

题目

最后他们决定自己保守这个秘密At last,they _ _ _ the secret _ _.

答案

最后他们决定自己保守这个秘密.

At last,they ___ ___ ___ the secret ___ ___.

答案：decided to keep by themselves