thegovernmentrecoversthevehiclepurchasetaxandtheoilpricesgoupcontinuously，thesalesofthevehicleinChinaarestillincreasingeveryyear．（）A.WhenB.OnceC.SinceD.While

Question

_____ the government recovers the vehicle purchase tax and the oil prices go up continuously，the sales of the vehicle in China are still increasing every year．（　　）

A. When

B. Once

C. Since

D. While

Answer 1

答案D．when"在…时候"，引导时间状语从句．once"一旦"，引导条件状语从句．since意思是"自从…以来"时，引导时间状语从句；意思是"既然"时，引导原因状语从句．while表示"当…的时候"，引导时间状语从句；意为"尽管、虽然"，引导让步状语从句．分析可知前后两句话之间是逻辑上的"让步"关系，再结合句子所表达的意思可知答案选D．