This pop star is very ______ with young people, who like his songs and style.
Only when the government increases affordable homes for low-income groups________.
On the chairs _________ , who had come to Dalian looking for jobs.
Not until about 2000 BC________________________done.
——Did you know any French before you arrived in Washington? ——Never ____ it, actually.
Never before ___________in greater need of technical experts than it is today.