【题目】Susan has been working hard day and night, which ________ her pale face.
A. stands forB. accounts for
C. benefits fromD. recovers from
在线课程【答案】B
【解析】
考查动词短语辨析。句意：Susan日夜不停地工作，这就是她脸色苍白的原因。A. stands for代表；B. accounts for说明……的原因；C. benefits from得益于；D. recovers from恢复，根据题意，故选B。