题目 / 答案提交正确答案
It is absolutely essential that William ______ his study in spite of some learning difficulties.[ ]
A. continue
B. continued
C. has continued
D. would continue
答案
A
解析
考查虚拟语气。
在it+is+形容词+that句型中，当形容词为necessary，important，essential等时，that从句应该用虚拟形式(should+v．)，从句中的should通常可以省略，故本题选C。
考点名称：虚拟语气
虚拟语气的概念：
虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。在条件句中的应用条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。
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