Question

【题目】Her son _____ the army(军队) for two months. She misses him very much.

A . has joined B. has been in

C. joined D. was in

Answer 1

【答案】B

【解析】

试题分析：句意：她儿子已参军两个月了，她非常想念他。 for two months表示一段时间，前面的动词应具有持续性或表示状态。所以选B。