【单选题】I was about to leave _____ the telephone rang.
【单选题】I was about to leave _____ the telephone rang.
【单选题】I was about to leave my house ______ he came.
【单选题】样本 取自总体 , , ,则以下结论不成立的是
【单选题】I was about to leave my house______ the telephone rang.
【单选题】I was about to leave my house_____the phone rang.