______, he realized he made the right decision.A、Before longB、Long beforeC、Aft

游客2023-11-07  21

问题 ______, he realized he made the right decision.

选项 A、Before long
B、Long before
C、After
D、Before

答案 A

解析 此题考查固定搭配。before long是副词词组,意思是“不久以后”。long before是“很早以前”的意思,如:Long before he came to China,he had learned Chinese for three years.早在他来中国以前,他就学了3年的汉语。C和D选项如果是介词,则缺少宾语;如果是连词,则缺少从句;如果是副词,则一般用于句尾。因此不用C和D选项。
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