题目

I want to know .A. how long has your uncle marriedB. how long it is since your uncle got marriedC. how long your uncle had been marriedD. how long your uncle has married 答案：【答案】B【解析】句意：我想知道你叔叔结婚多长时间了。how long has your uncle married语序不对；how long it is since your uncle got married自从你的叔叔结婚有多长时间了；how long your uncle had been married时态不对；how long your uncle has married形式错误，marry是瞬间性动词，不能和一段时间搭配使用。故应选B。北京位于我国华北平原的（     ） A．西北端          B．东北端          C．东南端           D．西南端