______ he completed his education abroad, he has been working for a travel agenc

游客2024-08-03  9

问题 ______ he completed his education abroad, he has been working for a travel agency in Shanghai.

选项 A、As soon as
B、Since
C、By the time
D、When

答案 B

解析 该题考查考生对时态的掌握。他在国外完成学业这个行为发生在过去某一点,从那以后一直在做,而且还会继续做下去,因此用现在完成进行时。
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