teachers think students need"t do so much homeworks,but they ___make their

题目

teachers think students need"t do so much homeworks,but they ___make their
teachers think students need"t do a lot in tho much homeworks,but they ___make their students do a lot in the past.
A.have to B.must C.had to D.should

答案

had to是不得不的意思,表示过去
　　整句话的意思是说：老师们认为学生不必做过多的作业,但是在过去,他们不得不让学生们做很多作业.