[speaker001:] I'm going to the hospital to see Susan Green.
[speaker002:] I saw her yesterday. She was a little better.
[speaker001:] Must I catch a number 7 bus to get there?
[speaker002:] No, you needn't. A number 13 bus will also take you to the hospital.
[speaker001:] Number 13 buses run much more frequently, don't they?
[speaker002:] Yes. I caught a number 7 bus yesterday, and I had to wait for half an hour at the bus stop
[speaker001:] Thank you, Henry. I'll get a number 13.
[speaker002:] But number 13 buses leave from the centre of town. You'll have to walk two miles to catch one.