He turned his back __________ me and refused to lend me any money when I lost my job .
Many students ______independent learning skills because the education system spoon-feeds them.
Mary is a newcomer. I suppose it will take her a long time to _______ herself to the new surroundings.
Thank you for giving me so much help. I _______in the experiment without your support.
One of the functions of _______UN is promote respect for human rights, making the world _______ better place.
—I'm afraid I must be off now. — .