问题
选择题
My English teacher insisted that the exercises ____very difficult and that we ____them carefully.
A.were; must finish
B.be; finish
C.were; finish
D.be; finished
答案
答案:C
题目分析:根据句子结构可知,and前的部分表述的是观点,故用一般过去时;第二空表达的是建议,故用should+动词原形的形式,should被省略。句意:我的英语老师坚持认为这些练习很难,我们应该认真完成它们。