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求新概念2册句子分析 lesson24
He started to complain about this wicked world but was interrupted by a knock at the door.
请分析interrupted是 动词(打断)+ed,还是形容词(中断)?
整句话的时态?
固定用法?
interrupted是过去分词,放在be(was)后面表示被动. 整句为过去时. 有两个词组值得背:complain about sth. start to do sth.