对进行胃镜检查的病人应采取的护理措施包括( )。

A．检查前禁食12小时

B．检查前半小时给予阿托品皮下注射

C．检查前协助病人摘除假牙

D．检查后无需禁食，可进少量流质

E．检查后告诉病人出现的咽部不适会自行消失

---Miss Wang, I went to your office at 11:45 yesterday morning ,but you weren’t in. --- I _____with a student in the classroom at that time.

A．am talking

B．talk

C．talking

D．was talking