I’d have made a phone call to you, ___________ your telephone number．— That’s all right．What was up then?

Though Shakespeare has long gone, his powerful ideas still undoubtedly ________ the western society.

are some health problems that, when ______ in time, can become bigger ones later on.

He likes playing ______ guitar but he doesn’t like playing _____ soccer.

Bears often hide themselves in places ________ can’t befound by hunters.