Students (主语) have to (不得不,情态动词)take part in(动词短语,做谓语) the exam (宾语) held (本句话的第二个谓语动词,用非谓语形式—过去分词,表示被动,因为考试是被举行的,做定语)by the city(引出是谁举行考试的)
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Students (主语) have to (不得不,情态动词)take part in(动词短语,做谓语) the exam (宾语) held (本句话的第二个谓语动词,用非谓语形式—过去分词,表示被动,因为考试是被举行的,做定语)by the city(引出是谁举行考试的)
希望帮到你哦···
欢迎追问