In my opinion.

在我看来

In my opinion,you did the right thing.

在我看来，你做的很对。

In my opinion,your job is challenging.

在我看来，你的工作很具有挑战性。

In my opinion,Mike is the most handsome boy in the school.

在我看来，麦克是学校里最帅的男生，

A:Hey,Mary,wanna have a drink?

嗨玛丽，来喝一杯吗?

B:No,thank you.

不了，谢谢。

A:Come on,Let's have some fun.

别这样，让我们愉快点。

B:In my opinion,drinking too much will do harm to one's body.

在我看来，喝太多对一个人的身体不好。