There is a desk in the classroom.

what is there in the classroom?There is a desk in the classroom。教室里有(指：存在)什么?there be 表示“存在”what is in the classroom A desk is in the classroom。教室里有什么?be in 表示“存在”。be in 执政；在家；到达；在…里面 存在于(某时、某地)：例句：The old letters are in the bottom drawer。旧信件在最下面一个抽屉里。