Let’s _____ (begin ) our class.这里填什么?

Let’s _____ (begin ) our class.这里填什么? Let's begin our class. Let's begin our class _____ everybody is here there ( ).Let's begin our class Let,s begin ____ our class now Let,s begin to have our class now.= let,s begin having our c Let's begin our ( ) Let,s begin our class Is ____ here now? ______everyone is here.Let's begin our class. __________ everone is here,let's begin our class. let us begin our class 是什么意思 What about _____(begin) our class