although引导的让步状语从句不用倒装语序,though引导的让步状语从句可用也可以不用倒装语序,as引导的让步状语从句一定要用倒装语序.
在这句话中,如果用although的话,要这样表达：Although he is busy,he always finds time for sports.
要是用though的话,这样表达：Busy though he is,he always finds time for sports或Though he is busy,he always finds time for sports.
要是用as表达的话,这样：Busy as he is,he always finds time for sports.