【C6】A．NeverthelessB．In additionC．UndoubtedlyD．In contrast

【C10】A．ThereforeB．In additionC．In contrastD．Nevertheless

【C10】A．In totalB．In additionC．In turnD．In general

【C6】A．In factB．In additionC．In generalD．In theory

【C19】A．Above allB．In additionC．GenerallyD．However

【C9】A．to some extentB．in additionC．on the contraryD．on the other hand

【C11】A．In principleB．In additionC．In particularD．In summary