请听下面一段对话，回答第1至第4四个小题。 1. What does the speaker want to tell us? A. Many people like planting flowers. B. We should be careful to give others flowers. C. Many people don't know how to express themselves. 2. What was a lady's reaction if we gave her yellow roses in the past?. A. She was angry. B. She was happy. C. She was grateful 3. What kind of flower will we give him if somebody helps us? A. Lily or tulip B. Sunflower C. The peach rose. 4. What kind of flower will we give a person to show that we admire him? A. The red rose B. Tulip C. Lily