未知题型
__________ as it was at such a time, his work attracted much attention.A) Being published B) PublishedC) Publishing D) To be published
选B，前后两个分句主语应该是一致的，所以原文应该是his work was published at such a ti......
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问答题 河北工程大学2012年12月英语四级报名流程？
未知题型 They took ________ measures to prevent poisonous gases from escaping.A) fruitful B) beneficialC) valid D) effective
问答题 河北工程大学2012年12月英语四级缴费时间？
