Listen to the audio and complete the sentences

Am I riding a bike? — Yes, I am. / No, I am not.

Are you driving a trolley? — [ ]

• Is
• No, he isn't.
• Yes, we are.
• Yes, she is.
• Are
• No, they aren't.

1. [ ] he driving a bus? — [ ]
2. Are you riding a motorbike? — [ ]
3. Is she driving a lorry? — [ ]
4. [ ] they riding a skateboard? — [ ]