Change the subject
To begin talking about something different. I tried to change the subject when my friend began to talk about the money that I owed him.
Change one`s tune
To make a change in one`s story/statement/opinion/policy. Our supervisor has changed his tune and agrees that we need to do things differently.
Change one`s mind
To change one`s decision. My friend changed his mind and will not go to the movie tonight.
Come away empty-handed
To return without anything. The man came away empty-handed after shopping all morning.
Check in (at an airport)
To go to an airport and talk to an airline agent before boarding an airplane. We arrived at the airport and checked in early.
Check into (a motel/hotel)
To register at a motel or hotel. We arrived at the hotel and then checked in.
Check on (someone or something)
To examine someone or something in order to determine the condition of it/him/her. We always check on our baby before we go to sleep.
Check one’s luggage
To give your baggage to an airline agent in return for a luggage claim ticket. I checked my luggage and went to wait for my flight.
Come back
To return to the place where you are now. My cousin came back from her holidays last week.
Check out (of a motel/hotel)
To pay the bill at a motel or hotel and then leave. We ate breakfast and then we checked out of the hotel.