单项选择题
Dawson’s example shows that a business starts （）
A．with a moment of sudden realization of inspiration B．with the knowledge of what is needed C．after you have climbed some muntains D．when you have climbed some mountains
单项选择题 The author regards George Mason’s personal contribution to American law as （）
单项选择题 Mason’s relation to the Federal Bill of Rights was one of （）
单项选择题 Michael might have come to school in time for Professor Browning’s lecture （）
