Ⅱ. 找出错误并改正
【小题1】He used to working in a hospital, but now he is a teacher. __________
【小题2】Most eye problems can cured or prevented. __________
【小题3】The boy's parents were very grateful for the doctor. __________
【小题4】Sam forgot his homework at home yesterday. __________
【小题5】I have such much homework to do that I have no time to watch TV. __________
【小题6】You can help by send a donation. __________
【小题7】UNICEF set up in 1947 after the war. __________
【小题8】They should go to school instead of work to support their families. __________