(2013·江西六所重点中学一模)—Tom has played a lot of computer games recently.—Yes, that might his fa

(2013·江西六所重点中学一模)—Tom has played a lot of computer games recently.
—Yes, that might his failure in the mid­term examinations.
A. account for
B. answer for
C. ask for
D. stand for

(答案→)A. account for B. answer forC. ask for D. stand for解析：选A　考查动词短语辨析。句意：“汤姆最近玩太多电脑游戏了。”“是的，这也许是他期中考试失利的原因。”account for“是……的说明 (或原因)”，符合句意。 answer for“对……负责，因……受到谴责”；ask for“要求，请求”；stand for“代表”。

就是这个解释