Fill in the blanks with the proper form of the words given in brackets. (用括号中所给词的适当形式填空) 11. When you are (relax) ________, your breathing tends to be slow and gentle. 12. Bill Gates was born into a (wealth) ________ family and he has two sisters. 13. The system helps (computer) __________ the school's salary management. 14. He gave a lot of money for AIDS (prevent) __________ and relief of other diseases. 15. He is one of the (rich) ________ and most innovative entrepreneurs in the world.