A. Control of Respiration
B. Beauty of Fresh Cut Flowers
C. Role of Respiration
D. Most Important Aspect of Flower Care
E. Need for Clean Water
F. Ways of Stopping Respiration
Paragraph 5 ______.

A. The health condition of his or her grandmother
B. The geographical environment
C. The social convention
D. The family tradition

A．Because that number would make him famous.
B．Because that number would make his fans miss him.
C．Because that number was related to the number his brother once wore.
D．Because that number was easy to remember.