The northern parts of the United States get very cold in the win

The northern parts of the United States get very cold in the winter.It snows a great deal and the?temperature often goes_____21_____zero degree in January,_____22_____and March.But the northeastern and?northcentral regions of____23______have been financial and industrial centers,and they are heavily polluted. In recent years,people in these regions have begun to take vacations_____24_____these cold winter?months.They go to southern parts of the country____25______it is warmer.Many go to Florida where the?weather is_____26_____.Others go to the southwestern states of Arizona,New Mexico and Texas where they._____27_____dry desert climates. It has become_____28_____nowadays.for old people to move south to these places_____29_____they?retire.Typically these people sell their houses in their home communities and move south to begin a?new life_____30_____senior citizens. Their children likely have homes_____31_____and many of them are moving south_____32_____communities?where they were_____33_____.The southern and southwestern parts of the country are now growing_____34_____any?other part.Business and industry_____35_____many offices and factories in the south.California is already?the most popular state in the country. 第(31)题答案
A、of their
B、of their own
C、for theirs
D、for their own's
【正确答案】:B
【题目解析】:在第(31)题中,需要选择一个合适的短语来描述“他们的家”。选项A“of their”是不完整的,因为它缺少一个名词或所有格代词来构成完整的短语。选项C“for theirs”和选项D“for their own's”在语法上都是错误的,因为“theirs”已经是所有格代词,不需要再加所有格后缀“-s”,而“for”通常不用于这种所有格结构。 正确答案是选项B“of their own”,这个短语通常用于表示某人自己的某物,它在这里的意思是“他们自己的家”。这个短语既符合语法规则,也符合句子的语境。 因此,答案是B:“of their own”。