单项选择题
What's the meaning of the word "elastic" (Line 2, Para 2)（）
A．Adaptable. B．Flexible. C．Pliable. D．Yielding.
单项选择题 A suitable title for the passage is （）
单项选择题 People probably take part in dangerous sports nowadays because （）
单项选择题 More and more people today（）
