There is a river in the forest.改为复数句

There is a river in the forest.改为复数句 There is a duck in the river[改为复数] there is a child near the river改为复数句 Is there a forest/river in the park? 分成两句 1,There is a fox in the forest（改为复数形式） Is there a child in the room(改为复数句 ) There is a balloon in the tree 改为复数句 There is a bear in the Zoo改为复数句 there is a child in the room.改为复数句 There is a tree in the garden.改为复数句 There is a bank in the neighborhood.改为复数句 1.There is a bear in the forest.(改为复数形式） 2.Is the giraffe fr