【题目】The use of the telescope to observe the heavens close up has made ________ great increase of our knowledge of the starts.
A.possibleB.it possibleC.possiblyD.it possibly
在线课程【答案】A
【解析】
考查形容词作补足语。句意：在观察近处天空时使用望远镜让我们了解更多关于星星的知识成为可能。make possible sth. 使...成为可能。本句宾语太长，故而补语提前，免得头重脚轻。故选A项。