When John left the office, Amy ( )at her desk.
A.正确答案Dis still working
B.has still worked
C.had still worked
D.was still working
When John left the office, Amy ( )at her desk.
When John left the office, Amy ( )at her desk.
A.正确答案Dis still working
B.has still worked
C.had still worked
D.was still working