Question

The teacher tells her students, who promise they ______ quietly for three hours, that she won't give extra assignments.
1.would study
2.studied
3.study
4.have studied
5.will study

Answer 1

I think the answer is would study

Answer 2

Answer:

(A) Would study

Explanation:

"Would" have many uses in a sentence, when constructing a sentence in indirect speech, it is used as a connector. In other situations, would is used to show determination as well as willingness. Further, “would” is used to indicate a wish, for instance, “we would like to.” Finally one can use “would’’ as the first clause proceeded by a subordinate clause to should impossibility or an abnormal condition on different sentence.