BECAUSE/BECAUSE OF

9. They couldn't understand each other because of the big age difference

→ They couldn't understand each other because ___________________.

12. This hotel is hightly rated because of its location and great service

→ This hotel is hightly rated because______________

14. She was scared because he saw poisonous snake in the grass

→ She was scared because of_____________.

16. Because his lack of courage, Nathan didn't participate in the competition.

→ Because of ______________________________________.

17. I prefer driving because I am afraid of flying.

→ I prefer driving because of _______________.

19. Because I lost mine, I am going to ask my friend if I I can borrow his calculator for the tomorrow exam.

→ Because of _______________________________.