【题目】—I wonder why he has been acting so strangely these days.
—Recent pressure at work may his behavior.
A.account for
B.call for
C.change for
D.stand for

【答案】A
【解析】句意：—我想知道他为何最近表现得这么奇怪。—最近的工作压力可以解释他的这一行为。account for “解释，说明”；call for “需要，要求”；change for “替换，更换”；stand for“代表”。选A。