问题补充:
--- What’s the matter, Mary? You looked upset.
--- I failed again in my math exam. I’m really sorry because I don’t want to my parents down.
A. turn
B. write
C. let
D. take
答案:
A. turn
B. write
(答案→)C. let
D. take
解析:turn转动,转变;write写;let让;take带走,拿。句意:怎么了?玛丽。你看起来很沮丧。——我在数学考试中又不及格。我真的很抱歉,因为我不想让我的父母失望。短语let sb down让某人失望,故选C。