你听说了我们班将要去北海玩的消息了吗

Did you hear the news that our class is going to traval in Beihai?

译成中文：你听说我们班要去北海玩（的消息）了吗？
括号中的要不要都行。

Have you heard the news that we are going to travel in BeiHai?

Have you heard of that we would travel to Beihai?