we were very sad when we heard of the bad news.改为同义句 We were very sad ___ ___ of the bad news.

we were very sad when we heard of the bad news.改为同义句 We were very sad ___ ___ of the bad news.

保证准确：
We were very sad when we heard of the bad news.
= We were very sad (to hear) of the bad news.
如果你满意我的答案,这是对我们答题者劳动的尊重,多谢!

over hearing