A．revealedB．exposedC．openedD．shown[A] revealed [C] open……

单项选择题[A] although [C] so[B] because [D] if

单项选择题[A] among [C] in[B] between [D] to

单项选择题[A] lain [C] set[B] stationed [D] located

单项选择题[A] find [C] uncover[B] expose [D] discover

单项选择题[A] waterways [C] channels[B] waterfronts [D] paths