A: My sister-in-law gave birth to a baby last week and I am so happy!

我嫂子上周生了一个宝宝，我很高兴啊！

B: Oh, really? I'm happy to hear that, too.

哦，真的吗？我也很高兴听到这个消息！

A: You passed the examination.

你考试通过了。

B: Thank goodness. I'm so happy.

太好了，真高兴啊！