单项选择题
John left home twenty minutes ago. It is usually half an hour's drive from his home to the office here. So he （） soon.
A．should have arrived B．need arrive C．must have arrived D．may arrive
单项选择题 Many a man （） life is meaningless without a purpose.
单项选择题 （） all the money people here spend eating out, restaurants' profit is still below five percent.
单项选择题 The wind was so strong last night that is tore the （）of the ship into two or three pieces.
