There is a ball under the desk.对a ball 提问 These are balls un

There is a ball under the desk.对a ball 提问 These are balls un there is a ball under the desk. these is a cat on the什么意思? Is there a ball under the desk?---______________________. Is there a ball under the desk?改错 under the table [ ] A a ball are B.is a ball C are a ball D. the soccer ball is （under the desk .）对括号里的部分提问 under the teacher\'s table there is a ball under the tree , there is a brown ball a ball under tabie is there the连词成句 there 's a ball under the Under the table_____.A.a ball are Bis a ball C.are a ball.Dh There is a ball （a ball为划线部分）behind the door.对划线部分提问