单项选择题
The writer of the passage has a (an) （）attitude towards dangerous sports.
A．positive B．negative C．objective D．subjective
单项选择题 What's the meaning of the word "elastic" (Line 2, Para 2)（）
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 （）
