2. 外语
  3. He (kept) his (head); (otherwise) the accident (had happened)

He (kept) his (head); (otherwise) the accident (had happened)

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问题 He (kept) his (head); (otherwise) the accident (had happened)
选项 A、kept
B、head
C、otherwise
D、had happened
答案D
解析 otherwise表示否则，它所在的句子要用虚拟语气。本句是对过去发生事情的假设，用would havedone表示。改“had happened”为“would have happened”。
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