About Passage 2 Question 20，which choice should be selected？
A. Common interests.
B. Friendship.
C. Happiness.
D. Stress.
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About Passage 2 Question 21，which choice should be selected？
A. Provide you with a sense of purpose.
B. Give you professional progress.
C. Make you happy helping others.
D. Strengthen relationships.
About Passage 3 Question 22，which choice should be selected？
A. The sources.
B. The cancer.
C. Diseases.
D. The diagnosis.
About Passage 3 Question 23，which choice should be selected？
After raising $5.6 million.
Before raising $5.6 million.
C. While she was raising $5.6 million.
D. While her brother was raising $5.6 million.
About Passage 3 Question 24，which choice should be selected？
A. He hopes that a cure is found.
B. He hopes to search for a cure.
C. He hopes that the fundraiser helped.
D. He hopes to raise more money.
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