问题
单项选择题
At throe thousand feet, wide plains begin to appear, and there is never a moment when some distant mountain is not ______.
A．on view
B．at a glance
C．on the scene
D．in sight
答案
参考答案：D
解析： in sight“可以见得到，被看到”；on view“展览，上映”；at a glance“看一眼，瞟一眼”；on the scene“出现，到场，在场”。答案是D。