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My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

    A. until     B. before     C. while     D. after

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A、until   B、before        C、while D、after

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A、until    B、before   C、while    D、after

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A. until     B. before     C. while     D. after

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A、until????????????? B、before????????????? C、while????????????? D、after