问题描述：
SAT两题句子提升题
Though three-fourths of Kenya is a barren plain,most people live and extensively farm the highland area.
为什么逗号之后改成the highland area,where most people live,is farmed extensively.好一些?
Under the new regulations governing tobacco advertising,the well-known ad （that shows people riding horses smoking cigarettes） will no longer be allowed.
为什么括号内改成that shows people smoking cigarettes while riding horses好些?
Though three-fourths of Kenya is a barren plain,most people live and extensively farm the highland area.
为什么逗号之后改成the highland area,where most people live,is farmed extensively.好一些?
Under the new regulations governing tobacco advertising,the well-known ad （that shows people riding horses smoking cigarettes） will no longer be allowed.
为什么括号内改成that shows people smoking cigarettes while riding horses好些?
问题解答：
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