Question

【題目】By the time they arrived, the enemy forces _______, leaving the small village destroyed.

A.withdrawB.will withdrawC.are withdrawingD.had withdrawn

Answer 1

【答案】D

【解析】

考查動(dòng)詞時(shí)態(tài)。句意：在他們到達(dá)之前，軍隊(duì)已經(jīng)撤離，離開了被破壞的小村莊。分析句子成分可知，句中By the time they arrived意為“在他們到達(dá)之前”為時(shí)間狀語，是完成時(shí)的標(biāo)志，且arrived為過去某一時(shí)間發(fā)生的事，因此使用過去完成時(shí)形式。故選D項(xiàng)。