单项选择题
It was foolish of him to （） his notes during that important test, and as a result, he got punished.
A. stick to B. refer to C. keep to D. point to
单项选择题 I’m sure ghosts do not exist. ______ I have never seen one.
单项选择题 It was not an easy decision for her to make as it would affect her future study in college and her future job （）
单项选择题 The winter of 1990 was extremely bad. （）, most people say it was the worst winter of their lives.
