______racial problems have not been solved and full equality has not been attain

游客2024-10-11  7

问题 ______racial problems have not been solved and full equality has not been attained yet, progress in these directions has been quite remarkable.

选项 A、Since
B、Although
C、Now that
D、Before

答案 B

解析 状语从句。although意为“尽管,虽然”,引导让步状语从句;since意为“因为;既然”;now that意为“现在已经……;既然已……”;before long意为“不久”,不是连词,不能带从句。
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