There are some balls in the the basker改为否定句

There are some balls in the the basker改为否定句 There are some students in the classroom (改为否定句) There are some clouds in the sky.改为否定句 改为否定句：There are some boats in the river. There are some plants in the classroom 改为否定句 改为否定句 There are some students in the classroom. There are some pencils in the box(改为否定句) there are some oranges in the bottle改为否定句 there are some threes in the garden?改为否定句 There are some people in the park 改为否定句 there are some desks in the room?改为否定句 there are some kites in the sky改为否定句