Herson
问题详情：
Her son _____ the army for two months. She misses him very much.
A . has joined B. has been in C. joined 
D. was in
【回答】
B
知识点：动词时态
题型：选择题
问题详情：
Her son _____ the army for two months. She misses him very much.
A . has joined B. has been in C. joined D. was in
【回答】
B
知识点：动词时态
题型：选择题
