There are_______boys in the classroom.（twelve,twelfth）

There are_______boys in the classroom.（twelve,twelfth） in the twelfth century是什么意思 there is a child in the classroom 复数句 （）（）（）in the classroom There are thirty girls in the classroom There are some chairs in the classroom There is a desk in the classroom. There are ______ students in the classroom. 改错:Is there anybody in the classroom? There are ( ) ( ) ten girls in the classroom. There have some students in the classroom/ ----Are there any computers in the classroom? Is there anybody else in the classroom?