摘要:He home for nearly three weeks. A.has gone away B.has left C.has been away from D.went away from 答案:B 现在完成时表示从过去某时间开始一直延续到现在并还可能延续下去的动作.用于延续性动词.且句中常带有表示一段时间的时间状语.如:since.for two month.
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