问题
选择题
---Do you know how long ________? ----I’m sorry I don’t know.
A．he has come here
B．has he been married
C．Tom has bought the car
D．his uncle has been abroad
答案
答案：D
题目分析：此题根据选项是考查宾语从句，宾语从句的语序要用陈述语序，所以排除B；题中宾语从句的引导词是how long（时间段），所以谓语动词应用延续性动作动词，所以排除A、C，故选D。