our teacher was ill yesterday, so we ___ have a day off. A.could B.were able to 为什么选B?
来源:百度知道 编辑:UC知道 时间:2024/06/28 17:19:45
首先是时态问题,前句用的是过去时那么后句就因该与前句的时态一至.其次是根据题意前边说了我们老师昨天病了,后句说所以我们能休息一天而could多用于虚拟语气或者将来时态中.所以B是最好的答案.
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