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！

　　Oh, really? I'm happy to hear that, too. 哦，真的吗？我也很高兴听到这个消息！

　　Thank goodness. 太好了。

　　You passed the examination. 你考试通过了。

　　Thank goodness. I'm so happy. 太好了，真高兴啊！