It’s not ___ good idea to drive for fourhours without ___ break

It is well-known ______ a person, especially the old, eats too much he’ll feel uncomfortable

Canada is a country _____many different nationalitiesas well as one with foreign immigrants _____ the majority of its population.

______ leaves the room last ought to make sure thatthe windows are closed and the door locked.

____________ a big party in our school in two weeks.