Question

【题目】________ we stood at the top of the building, we were able to see the town below clearly.

As

Although

Unless

Until

Answer 1

【答案】A

【解析】句意：由于我们站在楼顶上，我们能够清楚地看到下面的城镇。由句意可知，两个句子之间是因果关系，所以选A项。