She was in the garden pulling up weeds.她在花园里拔草。The fire engines were just pulling up, sirens blaring.消防车正要停下来,警报器发出刺耳的声音。The fire engines were just pulling up, sirens blaring.响着警报器的消防车正要停下来。She didn't hear the car pulling up outside the house.她没有听见汽车停在屋子外面。