II. Write C if the sentence is a compound sentence and CX if it is a complex sentence.

6. Theirs is an expensive car but ours is an ordinary car.

7. He felt exhausted, but he enjoyed the activity.

8. Before joining the art contest, Wilson inquired the details about the competition.

9. If you are good in singing, why not consider a singing career?

10. Dan accepted the task because he was the ablest among the pupils.​