There is ______ in the ocean. (freshwater/ saltwater)
saltwater
There is ____ in rivers or lakes. (freshwater/ saltwater?)
freshwater
Some people can live in a ______ to travel to different places. (houseboat? yacht?)
houseboat
A ____ is a journey by sea. (flight? cruise)
cruise
A _______ is a large sailing boat used for pleasure trips, with a place to sleep on board. (yacht? canoe?)
yacht
This is a long passage for boats and ships to travel along. (railway? canal?)
canal
