问题详情：
![–Icalledyoulastnight,butnobodyanswered.Wherewereyouthen...]( "–Icalledyoulastnight,butnobodyanswered.Wherewereyouthen...")
– I called you last night, but nobody answered. Where were you then?
- Oh, I ____________ my pet dog in my yard.
A. walked B. was walking C. am walking D. will walk
【回答】
B
【解析】句意：——我昨晚给你打电话了，但是没有人接。那时你在哪里?——哦，我在院子里遛我的宠物*。考查动词时态辨析。根据句意语境可知，昨晚你打电话时我正在遛*，需用过去进行时“was/were doing”结构，故选B。
知识点：动词时态
题型：选择题
