单选题
My brother _______ for nearly five years.
A、
A. has been in the army
B、
B. has joined the army
C、
C. became a soldier
【正确答案】
A
【答案解析】
[解析] 本题考查现在完成时的用法。join和because为短暂性动词，不能与时间短语连用。故本题答案为A。
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