Be a helping hand is more useful rather than being a disadvantage.

1.

(+) We are having a barbecue in the backyard.

(-) We are not having a barbecue in the playground.

(?) Are we having a barbecue in the backyard? Yes, we are.

(?) Are we having a barbecue in the playground? No, we aren't.

2.

(+) The ball is rolling on the floor.

(-) The ball is not rolling on the grass.

(?) Is the ball rolling on the floor? Yes, It is.

(?) Is the ball rolling on the grass? No, it isn't.

3.

(+) The Earth is rotating around the Sun.

(-) The Earth is not rotating around the moon.

(?) Is the Earth rotating around the Sun? Yes, It is.

(?) Is the Earth rotating around the moon? No, It isn't.

4.

(+) The boys are studying Geography in the library.

(-) The boys are not studying Maths in the library.

(?) Are the boys studying Geography in the library? Yes, they are.

(?) Are the boys studying Maths in the library? No, they aren't.

5.

(+) My sister is washing the clothes.

(-) My sister is not washing the iron.

(?) Is my sister washing the clothes? Yes, she is.

(?) Is my sister washing the Iron? No, she isn't.

SEMOGA MEMBANTU

:)))