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虚拟语气与倒装 — 英语填空题

大学英语(综合教程) 语法结构 AI 三重审校通过

题目
Complete the sentence with the correct forms of the verbs in parentheses: If Mira ___ (save) the draft before the computer failed, she ___ (not lose) her revisions; only after the failure ___ she realize that the backup had not been activated.