Hi teachers~

I am looking for an expression for this situatuon.

A is in an English discussion class. His teacher usually picks topics but they are difficult for him so he decides to pick topics before his teacher.

I am looking for an expression to describe a situation where A does sth first before sb else does it.

Can you help me?

Thanks in advance~


Check out the definitions of 'preempt' here and see if that's what you're looking for.