题目

She _____ the school library ______ her mother came.
A.left;until B.didn't leave until C.stays;until D.was;before 要原因,详细

提问时间：2020-07-24

答案

答案：She【didn't leave】the school library 【until】her mother came.翻译；她没有离开学校图书馆直到她妈妈到来.语法；not.until.翻译为不.直到.解析；此题 came用到了过去式,所以didn't也要用过去时态.不懂再...