Question

In the office I never seem to have time until after 5:30p.m., ________ many peop

In the office I never seem to have time until after 5:30p.m., ________ many people have got home.
A. whose time
B. that
C. on which
D. by which

Answer 1

答案D
该题考查非限制性定语从句，by which指“到那时为止”，与完成时连用；介词on后接具体日期，不接时刻。