21. Fifty percent of the pies______________ disappeared. a. have b. having c. has d. was having 22. Everyone on the board of directors ___________ with the planned merger. a. agreeing b. have agreed c. agree d. agrees 23. Success in business ___________ certain strategies that satisfy both the employer and the employees. a. requires b. require c. is required d. requiring 24. Not only the painting method but also the colors ______________ the interest of art critics. a. has aroused b. have aroused c. arouses d. arousing 25. The number of corrections made during the first stage ______________ the charges significantly. a. has influenced b. have influenced c. are influencing d. influencing

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