Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Doctors are highly （ ） in that country. (appreciation)
【正确答案】：APPRECIATED
【题目解析】：
根据前句意主语是医生“Doctors”，谓语是appreciate "欣赏、欢迎”，医生是受欢迎的，应该用被动语体。所以应填动词appreciate的过去分词形式appreciated。句意：在那个国家，医生是很受欢迎的。