Based on 5c, ex.7

Choose the correct item.
Dependent prepositions

1. We'll have to go
   [in|by] boat. There's no road.
2. We didn't arrive
   [in|at] Kathmandu until well after dark.
3. When did you last go
   [in|on] holiday?
4. How often do you travel
   [in|by] train?
5. It's not very far. Let's go
   [by|on] foot.