1.Most cities in the country have introduced “Clean Air Zones” Whereby factories and households are only allowed to burn smokeless fuel. 2.He knows that the pursuit of social status can consume Vast amounts of his time and effort. 3.The doctors are at a loss because so far no medicine has been found to inhibit the spread of the disease. 4.We see many special education directors trying to maintain … . their program。 5. People there are told it is their patriotic duty to support the national economy by buying their own products. 6.Darwin's thinking both drew upon and transcended the conventional ideas of his time 7. In spite of all your endeavor , there may be times when you encounter difficulties in the training process. 8 My advice to Mr.Stewart is to think carefully before entering into a career in medicine,as this is a field which requires a lot of dedication and long working hours. 9.Most Chinese parents would prefer to choose some professions that are stable and could bring Prestige and economic benefits. 10 .It is legally possible for an elderly person to nominate someone to act for them, should they become incapable of looking after themselves. 1.Thomas Edison is often cited as an example of a great inventor who would never yield to hardships in his quest for new inventions and deserve his resultant success. 2.They're tolerant of unconventional attitudes toward marriage and the changing roles of the sexes. 3.Most scientists in the world today firmly believe the effective means to stop global warming is to reduce emissions of air pollutants. 4. Earthquakes have plagued our lives and resulted in great damage to the human beings for as long as people have inhabited the earth....