1.There is a duck in the river.（划线部分提问,划线部分是a）

1.There is a duck in the river.（划线部分提问,划线部分是a） 划线部分提问 There is a little water in the river 划线部分是a little There is a river in the mountain?的划线部分提问.划线的是 a There is a mouse in the house.划线部分是a mouse 对划线部分提问 划线部分提问 There is a pen in the pencil-case.(划线部分是a) 1.There is a little orange in the glass.(对划线部分提问,划线部分是a litt There's a toilet in the park.（划线部分提问） a toilet是划线的! There's a knife in the box.(对划线部分提问）,划线的是a There is a cat under the tree.划线部分是a.对划线部分提问 There is a book on the desk.划线部分提问,划线部分是on the desk. There is a school near the hospital.（对划线部分提问） 划线部分：near the 划线提问：There is a computer in the classroom.划线部分：a