问题补充:
单选题Ifailedinthespokenexaminationlasttermandonlythen_______theimportanceofpracticingspeakingEnglish.A.I had realizedB.had I realizedC.I did realizeD.did I realize
答案:
D解析本题考查倒装。首先由时间状语then确定时态为一般过去时,而时间状语由only引出放于句首,句子产生部分倒装,即助动词提前到主语之前,其他成分保持位置不变。