Thomas ________ the army for two years,so he misses his mother very much. A.has

题型：不详难度：来源：

Thomas ________ the army for two years,so he misses his mother very much.
A.has joined        B.has taken part in        C.has been in

答案

C

解析

本题的含义为汤姆斯参军已经2年了，表示时间长度，不可以使用短暂动词join或take part in，可以用be in来表示，故本题选B。