------Yes，that might ________ why he did so badly in the last test.

A. answer for B. apply for

C. account for D. call for

【答案】C

【解析】考查短语辨析。answer for 符合，对……负责；apply for 申请；account for 说明……的原因；call for 要求。句意为：那也许能解释他最后一次测试做得如此差的原因，account for 最符合句意，故选C。