He made another wonderful discovery, ______ of great importance to science.
—Do you enjoy the latest movies?—Yeah, I will go for _____ is on.
Personally speaking, Chinese parents should encourage children more, getting their confidence to _____ .
To our relief, the European company expressed their ____ to co-operate with us.
Yesterday, my father was so lost in his thoughts that he didn’t realize he ____ the red lights.
A bird is known by its song, and a man by his _____.