As the old saying goes, "You can't judge a book its cover." With more training and（advance） technical skills,he made a fortune by developing new products. He launched a campaignwas designed to help those in need in return for the society. He has done so much for poor in his community that we can't think highly of him enough. I strongly advocate that all of us （learn） from him and always be ready to help others.

Jack, has been awarded the title Professor, is a specialist in treating skin cancer. His wish is to cure people  the disease as soon as he can. Apart  regular training, he joins in a variety of activities, such as taking part in some national medical conferences. When he comes  the case where he has a different opinion, he may choose （respect） the opinion of the majority. He devotes himself to （treat） the patients while he spends a very （limit） time caring for his daughter. He is too busy （go） on a holiday. We  （strike）by his devotion to medical research.