根据n多题专家分析,试题“Having lost his key,________.A.he couldn’t enter the roomB.the gatekeeper offered to helpC.the door was forced openD.the room couldn’t be entered…”主要考查了你对 【现在分词的被动式】,【现在分词】,【不定式的被动式】,【过去分词】 等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。
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