The teacher said we_________ten lessons by the end of this term.A.studied B.will study C.were going to study D.should have studied 应该选哪个,为什么.如果选C,D为什么不对?

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Theteachersaidwe_________tenlessonsbytheendofthisterm.A.studiedB.willstudyC.weregoingtostudyD.should

The teacher said we_________ten lessons by the end of this term.A.studied B.will study C.were going to study D.should have studied 应该选哪个,为什么.如果选C,D为什么不对?
The teacher said we_________ten lessons by the end of this term.
A.studied B.will study C.were going to study D.should have studied
应该选哪个,为什么.如果选C,D为什么不对?

The teacher said we_________ten lessons by the end of this term.A.studied B.will study C.were going to study D.should have studied 应该选哪个,为什么.如果选C,D为什么不对?
should have studied 是本应该学习的意思,往往是表示对已发生的事实相反的后悔的语气.比如说I should have studier hard ,so I can pass the exam.就是说我本应该努力学习,我就可以通过考试了(意即事实上我并没有认真学习)
这里是老师说我们将要学习10课,因为SAID所以是过去将来时,用were going to ,是老师说(过去的某一天说的)我们到这个学期末将要学习10课.

D)虚拟语气的一种用法。by the end of this term:节止这学期末。
句意:老师说,节止这学期末我们将学完10课。

A. studied B. will study 都 对
c 和 d 的话,从句时态和主句时态无法自圆其说,因此不对。