Question

_____ we stood at the top of the building，we were able to enjoy the town below

_____ we stood at the top of the building，we were able to enjoy the town below clearly.
A. As
B. Although
C. Unless
D. Until

Answer 1

答案A
句意：由于我们站在楼顶上，我们能够清楚地看到下面的整座城市。由句意可知，两个句子之间是因果关系，所以用A项。