Due to Tom’s joke, the discussion __________and went on in a friendly atmosphere(气氛)。
The scientist corresponds with colleagues in order to learn about matters ______ to her own research.
Education should not be considered to be a(n) ______ in a modern society.
It is often recommended that children _____ chances to get close to nature.
— Do you think it wise for Chinese mothers to try to do everything for their children? — No, that’s ______ they are mistaken.
______ on his past mistakes, Ted realized that he had stayed around the wrong people.