单项选择：I won't go to bed ( ) my mother comes back from workA\untilB\afterC\whenD\if

单项选择：I won't go to bed ( ) my mother comes back from workA\untilB\afterC\whenD\if
单项选择：I won't go to bed ( ) my mother comes back from work
A\until
B\after
C\when
D\if

单项选择：I won't go to bed ( ) my mother comes back from workA\untilB\afterC\whenD\if
A 有not ...until 句式

A
not ……until