:( You ..................... sing.
You can't sing.
:) They..................... dance.
They can dance.
:( She ...................... riding a horse.
She isn't good at riding a horse.
:( I...................... climb.
I can't climb.
:( He..................... skating.
He isn't good at skating.
:) She .................... at diving.
She is good at diving.
:( He ................... swim.
He can't swim.
:( We............. fighting.
We aren't good at fighting.
:) I .......................... ride a bike.
I can ride a bike.
:) I ................... rollerblading.
I am good at rollerblading.
:( They ....................... singing.
They aren't good at singing.
:( He ......................... driving.
He isn't good at driving.
