Transformation of sentences 2

Dear student,

Here are the answers:

11. The water is not clean for drinking.
12. He must apologise so that he won't be punished.
13. George's rudeness is not needed.
14. It does not require much time for this task to be completed.
15. Johnson isn't very tall, but he is very handsome.
16. All the details of the plot were acquired by the manager.
17. They aim at finishing all the work by Sunday.
18. Despite it has been raining heavily, he managed to reach his destination.
19. He was prevented to attend the meeting because of the traffic jam.
20. Does he believe that all states are secular?

Regards