Are there a ball on the desk?yes,（ ）（ ）.括号里应该填什么

Are there a ball on the desk?yes,（ ）（ ）.括号里应该填什么 there[ ]a book and three apples on the desk.[括号里应该填什么] There ( )a pair of shoes on the desk.括号里填什么? There aren't a ( ) books on the desk,括号里填什么? There ( )a computer on the desk .括号里填are 、have、 has、is中的哪个快帮 （--------）apple are there on the tree?括号里填什么. there （ ） a pencil case and some books on the desk.（）中应该填is （ ）you often go to school on foot?Yes,I ( ).括号里应该填什么? There () any books on the desk.括号里写什么? What are （ ）over there on the desk?A. there is a ball under the desk. these is a cat on the什么意思? Are there some keys on the desk?Yes,there are 改错,将序号写在题前的括号内