答题库 《开放英语3》 2020-05-23 【开放英语3-1844】 The coursebooks, ______ my colleagues found very interesting, were useless for me. 【开放英语3-1844】 The coursebooks, ______ my colleagues found very interesting, were useless for me. A. who B. which C. that 钻石免费当前隐藏内容需要支付积分已有1人支付 支付查看
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