语法填空： 八年级下Unit1-2Dear sir，Im writing this letter to tell you something about Madam Li.She lives alone，but she never feels lonely.She often 40. (volunteer) to clean up the city park，give out notices，repair or fix bike 41. (wheel) for students.Madam Li used 42. (be) a doctor.She understands the 43. (difficult) of the disabled people.She likes to help and cheer up the blind and the deaf.She 44. (set) up a hospital for them.“I often get a strong feeling of 45. (satis
