Definition: If an event or situation happens, it exists or starts to be done, usually by chance. Level: A2
学校里每天都会发生很多有趣的事情。
Many interesting things ___happen at school every day.
我不知道接下来会发生什么。
I don't know what will ___happen next.
你生日那天发生了什么特别的事吗？
Did anything special ___happen on your birthday?
