Not only her mother but also her father _____ in the same school for twenty years. [ ]

A. will teach

B. has taught

C. have taught

D. is teaching

我国社会工作价值观建立的基础是( )。

A．社会主流价值观

B．传统文化

C．西方社会思想体系

D．我国本土政治、经济、社会制度体系

E．专业社会工作者的价值观