An artist who was recently traveling on a ferry to the southern island discovered ______ a long lost antique Greek vase.
I ______ ping-pong quite well, but I haven’t had time to play since the New Year.
_____ the front door _____, he had to enter the room through the back door.
_____ the diamond, he had to look for a place to hide it.
The dog, _____, will be made a good watchdog.
-- Have you considered _____ your job as a teacher? --- Yes. I like the job because a teacher is often considered _____ a gardener.