根据首字母填空mr.and mrs.brown have a son and a d---------.their n-

根据首字母填空
mr.and mrs.brown have a son and a d---------.their n------- are david and jane.they live in abig h------.there are four r------in the house.the big room is for mr.and mrs.brown.the small rooms are david's and jane's.this is david'sroom.there are nine s--------balls and five basketballs.they are u the bed.david likes sports.many books on the b-------and there is a p----on the wall.
第五个是什么?