It’s time for class ,please be quiet.语法

It’s time for class ,please be quiet.语法 It's time for class.Please l________ It's time for class.Don't play m_____ .Please be qui 咋填?Please s___ talking! It's time for class. It's time for class. It"s time for class.Please go back to your classroom.为什么是for please don't talk.__ time for class.A,This is B,That's C,it' It's time for class .please stop ( ) A:talk B:talking C:to t It's time for class,please sotp to talk.(其中有一处错误,请指出来) It‘s time for class lucy 用math time class it`s for it's time for English class.