Question

Choose the correct answer.
1) when / while ------- studied / was studying
2) when / while ------- was walking / were walking
3) when / while ------- were falling / fell
4) stopped / was stopping ----- when / while
5) played / was playing ----- when / while

Answer 1

1. While i was studying

2. While he was walking

3. When her keys fell

4. Stopped working when

5. Nathan was playing tennis when