Formal And Informal vocabulary test

choose the correct formal word to replace the verb (Happened) in the following sentence: the plane crash happened yesterday at night

"My stuff is all in my locker" is a formal sentence

the [blank_start]cop[blank_end] asked me to step out of my car and [blank_start]raised[blank_end] my hands

what is the correct informal word to replace "insane"

in conclusion, Formal and informal language serve different purposes.Informal language is more casual and spontaneous. It is used when communicating with friends or family either in writing or in conversation, while formal is less personal