Does Li Hua serve in the army?---No but he in the army for three years. A. servedB. h

问题补充：

--- Does Li Hua serve in the army?

---No, but he in the army for three years.

A. served

B. has served

C. is serving

D. would serve

答案：

(答案→)A. served

B. has served

C. is serving

D. would serve

解析：考查时态。句意：—李华在军队里服役吗？—不，他在军队服役三年了。根据句意说明他现在已经不在军队里服役了，在军中服役三年是以前的事情。故使用一般过去时。故A正确。本题容易错选B项，现在完成时表示过去发生的事情对现在的影响，在本句中体现不出。