作为回报这个词英语的翻译

Question

要四个词，原句是“—— —— —— ——，he invited me for dinner yesterday.
这时六年级的题目，还望高人指点！

Answer 1

In return for help，he invited me for dinner yesterday.
作为对什么的回报，他昨天请我吃饭了。
前面的不记得了啊

Answer 2

To express his gratitude

希望有用

Answer 3

In return for help
In return for 作为对、、、的回报
希望对你有帮助。