It was not rare(稀少) in that people in fifties were going to school for further study.
28. No decision about any future plan until we have done a thorough research of the teachers’ preference.
27. As five children under 10 got drowned in a southern province, it is not socially _____ for parents to leave children unattended at that age.
26. Google is testing a new television programming search service, _____ users to find shows videos from websites like Youtube.
25. It is only after my father was long gone _____ understand his deep love for me.
24. A growing number of people are beginning to believe that learning new skills and knowledge _____ more promotion opportunities.contributes to B. refers to C. devotes to D. appeals to