----Jack can’t concentrate on his lessons recently.--Yes that might his low score in

问题补充：

----Jack can’t concentrate on his lessons recently.

----Yes, that might his low score in the last test.

A. stand for

B. apply for

C. account for

D. call for

答案：

A. stand for

B. apply for

(答案→)C. account for

D. call for

解析：考查短语辨析。stand for代表，apply for申请，account for解释，call for

需要，句意：最近杰克不能集中精力上课。是的，那可能解释他在上次考试中低分的原因。故选C。