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

will study ....
i hope it will help u

Answer 2

From the given options, the correct answer for the given question is would study.

EXPLANATION:

The option studied is not suited for the question because it refers the past tense. The option study is wrong because it refers the present tense. The option will study is wrong because it refers the future tense.

The option would study is suited for the given question because it suits for the word promise and goes with it