Is Tony going by train?
Yes, he is.
Is she travelling by tandem?
No, she isn't. She's travelling by hot air balloon.
turn left or turn right?
Turn Left
Turn left or turn right?
Turn Right
Is she travelling by taxi?
No, she isn't. She's travelling on foot.
Is he travelling on foot?
No, he isn't. He's travelling by car.
Is Max going by hot air balloon?
No, he's going by bus.
Is Sarah going by lorry?
No, she isn't. She's going by taxi.