--- When will your father be back home?

--- ____ twelve o’clock.

. “_____ when does the pub stay open？”  “About midnight.”

—When will your father be back home?

—        twelve o'clock．

A．In       B．Since      C．Until         D．After

They did not stop fighting_____ there was no enemy left.

They did not stop fighting_____ there was no enemy left.

         A．until                          B．after                         C．when                  D．since