Can they play football?
Yes, they can (play football).
Can he play basketball?
Yes, he can (play basketball).
Can she ride a bike?
Yes, she can (ride a bike).
Can he ride a bike?
Yes, he can (ride a bike).
Can he play soccer?
No, he can't (play soccer).
Can the baby swim?
Yes, he can (swim).
Can he play tennis?
Yes, he can (play tennis).
Can she play the piano?
Yes, she can (play the piano).
Can he play tennis?
No, he can't (play tennis).