Last week, I made a plan to go back hometown and took a visit of my grandparents. They were so excited to see me because we hadn't seen each other for a long time. But my friend invited me to take part in his birthday party, and they had prepared many excellent activities. I really wanted to join and share his happiness. But thinking about the promise that I had made to my grandparents before, I was struggled to make final decision. As I didn't want to break my promise, I chose to refuse my friend's invitation. When I saw my grandparents' smile and the delicious food they cooked for me, I knew I did the right thing. We must keep our promise. If we can't do it, it is necessary to explain, or we will lose trust from others.

上周，我计划回家乡看望我的爷爷奶奶。因为我们很长一段时间没有见面了，所以他们如果看到我一定会非常兴奋的。但是我的朋友邀请我去参加他的生日派对，他们准备了很多精彩的活动。我很想去分享他的快乐。但考虑到之前对爷爷奶奶做出的承诺，我犹豫了。我不想打破我的诺言，所以我选择了拒绝朋友的邀请。当我看到爷爷奶奶对我的微笑和他们为我煮的美味食物，我知道我做了正确的选择。我们必须遵守自己的承诺，如果无法做到，一定要解释清楚，否则我们会失去他人的信任。