She can sing.	Can she sing? - Yes, she can.
He can't ride a bike.	Can he ride a bike? - No, he can't.
They can dance.	Can they dance? - Yes, they can.
His sister can't skip.	Can his sister skip? - No, she can't.
Her brother can't roller-skate.	Can her brother roller-slate? - No, he can't.
The duck can swim.	Can the duck swim? - Yes, it can.
The mice can't read.	Can the mice read? - No, they can't.
The horse can't fly.	Can the horse fly? - No, it can't.
The man can drive a car.	Can the man drive a car? - Yes, he can.
The dogs can't climb a tree.	Can the dogs climb a tree? - No, they can't.
The girl can't write.	Can the girl write? - No, she can't.
The boy can fly a kite.	Can the boy fly a kite? - Yes, he can.