Question

The teachen said we (should have studied) ten lessons by the end of this term

The teachen said we _____ten lessons by the end of this term.
A.should have studied B.were going to sudy
C.have sdudied D.shoud study
为什么要选A呢？有哪位朋友能给详细的分析一下？

Answer 1

虚拟语气
虚拟语气要用 Should 排除BC
过去的虚拟用Should have done

Answer 2

虚拟语气啊。找本语法书，找到相对应的知识点，里面有详细的解释。