【题目】—Do you know why the teacher asks for me? —He wants you to________your absence last night.
A.set off
B.settle down
C.watch out
D.account for

【答案】D
【解析】set off意为“动身，使爆炸”；settle down意为“定居，专心于”；watch out意为“当心”；account for意为“导致，做出解释”。此处用account for表示“他想让你对你昨晚的缺席做出解释”。故答案选D。