Ann: How are you getting to your job interview?
Bea: By bike. The farm isn't far from town.
Ann: But what will you do (you/do) if the weather is bad?
Bea: It's OK. If it rains, I will take the ten o'clock bus.
Ann: But if the bus arrives late, how will you get there then?
Bea: I will phone for a taxi if something goes wrong.
Ann: But if there is (not be) a signal, you (not able to phone) for a taxi.
Bea: You worry too much!