All work and no play makes Jack a dull boy, which suggests that work and play do not _________ but promote each other.
The journey around the world took the old sailor nine months, _____ the sailing time was 226 days.
He got to the bus station early, _____ missing the first bus .
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.
—Would you like to come to dinner tonight? —I’d like to, ___ I’m too busy.