Exercise 12. Fill in the blank with "however," "otherwise," "therefore," "and," "but," "or," "so," "because". 
10. The restaurant was busy,............. we decided to go to a different one
11. I want to go to the beach ;............., it's raining
12. She wants to go on vacation to Hawaii,............... she may choose to go to Mexico instead
13. He didn't like the movie, .................he left early
14. He's not feeling well;..........., he will have a day off
15. She likes to read books,.......... she also likes to write her own stories