He's never seen such a good film,______? [ ]
A. hasn't he
B. isn't he
C. has he
答案:C
Questions 14-18
Shopkeepers used to be important people ______.
铁路调车列车摘挂作业程序包括:准备作业,摘挂作业和()三大项。
A.摘挂报告
B.连挂车列
C.作业后处理
D.作业检查