题目内容
20.Without your help,I couldn'thave finished (finish) the task last night.分析 没有你的帮助,昨晚我不可能完成任务.
解答 51.have finished
答案是have finished.考查虚拟语气.根据last night可知题干是表示与过去的事实相反,主句中的谓语动词用"would/should/might/could+have+过去分词",故答案是have finished.
点评 本题考查用所给单词的适当形式填空.首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变动.
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