21. The concert was over early because the singer got sick.
22. When they saw the car wreck, then they called the police.
23. There is no such rule which you describe.
24. Though we like the poodle very much, we loved the bloodhound more.
25. Because it was late, so he went to bed.
26. They both had steak and chicken for dinner.
27. We can leave whenever you are ready.
28. Neither Chris or Sophie will be at school today.
29. Although we tried to help while the others did not.
30. He explained that his mother was out of town, so he would have to walk.


circle the number of the sentence that use conjunction correctly. ​