Question

【题目】Could you tell me how long ______ the navy?
A.you have joined
B.have you joined
C.you have been in
D.have you been in

Answer 1

【答案】C
【解析】考查时态。句意：你能告诉我你在海军服役多长时间了吗？现在完成时态和一段时间连用，谓语动词用持续性动词，join是短暂动词，与段时间连用时应改写成be in，因此可以排除A项和B项，宾语从句应为陈述语序，所以答案是C。