第二部分：題組
 (21 – 24)
       Do you like flowers? Some people love gardening. They grow plants in their gardens. They can watch different shapes of the flowers or the leaves in different seasons. Some like to do flowers. It’s really a delight for them to have beautiful flowers in their everyday life. They don’t just put all of them together in the vase. They need to arrange them: some in high and some in low； some as the main body and others as the supporting roles.
       Some flowers are just like messengers； they have their own meanings. For example, red roses mean love and yellow daisies ask you to cherish the memory. Baby’s Breath could be the symbol of youth. Balloon Flowers tell people your love for them will last forever. Besides, sending carnations to mothers is common because these flowers show your respect to the receivers. Flowers are not only beautiful but also meaningful.

 arrange安排   supporting支撐的   messenger使者   daisy菊   cherish珍惜   symbol象徵    carnation康乃馨 receiver接收者
【題組】21. What does them mean in line 5?
(A)People.
(B) Flowers.
(C) Leaves.
(D) Roles.