Jane / work? (✓)
Is Jane working? Yes, she is.
Luke / sleep? (✗)
Is Luke sleeping? No, he isn't.
the students / do their homework? (✓)
Are the students doing their homework? Yes, they are.
Mom / have breakfast? (✗)
Is Mom having breakfast? No, she isn't.
Matt / watch TV? (✓)
Is Matt watching TV? Yes, he is.
the man / run? (✗)
Is the man running? No, he isn't.
you / wear your black sneakers? (✓)
Are you wearing your black sneakers? Yes, I am.
the dogs / play in the yard? (✓)
Are the dog playing in the yard? Yes, they are.
they / go / the store? (✗)
Are they going to the store? No, they aren't.
she / go / swimming? (✓)
Is she going swimming? Yes, she is.
he / do / his homework? (✗)
Is he doing his homework? No, he isn't.
the dog / play / with the balls? (✗)
Is the dog playing with the balls? No, it isn't.
you / draw / pictures? (✗)
Are you drawing pictures? No, I'm not.
they / do / their science project? (✓)
Are they doing their science project? Yes, they are.
they / go to the park? (✗)
Are they going to the park? No, they aren't.
Mike / have a shower? (✓)
Is Mike having a shower? Yes, he is.
