Our English teacher often tells us that the meaning of a new word may be ________ according to the given context.
Space exploration has been made ______ with the development of modern science and technology.
A mysterious illness, referred to as “ a typical phenomena”, has been brought under control, the government said on Wednesday, ______ no cause of it has been made public.
Before leaving home, make sure to turn off the electricity, lock the door, ______ the windows open.
The idea for the new machine came to Mr. Baker ______ to his invention recently.
Professor Liu has ________ teach psychology since he came to the Central China Normal University.