The hotel wanted to charge $150 for the room service, but we couldn't ____________ to live in such an expensive hotel.
The manager is talking with his secretary _____ the telephone. They usually keep in touch _____ telephone.
These two houses are similar _____ they both have a large garden with many kinds of flowers.
The kind-hearted couple decided to adopt the boy ____ parents had been killed in an accident.
As a lover of popular music, she enjoys listening to it _____ MP3.
Scientists have shown that there is a connection ____ cigarette smoking and certain diseases.