请在 下方输入 要搜索的题目:

---- How did he get back last night? ---- I think he _____ back on foot, as there were no buses or taxies then at all. ( )


A、might have come

B、needn't have come

C、must have come

D、should have come

发布时间:2025-06-10 17:02:04
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答案:must have come
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