2. 外语
  3. If we (know) ______ that the books were available, we would have bought them yesterday.

If we (know) ______ that the books were available, we would have bought them yesterday.

admin2014-07-10  24
问题 If we (know) ______ that the books were available, we would have bought them yesterday.
选项
答案had known
解析 虚拟语气用在与过去事实相反的条件从句中时，条件从句的谓语用had+过去分词，主句的谓语用“should/would +have+过去分词”。
转载请注明原文地址:https://kaotiyun.com/show/UAYK777K
本试题收录于： 大学英语三级A级题库大学英语三级分类
0

大学英语三级A级

大学英语三级

相关试题推荐
随机试题
最新回复(0)