问题
选择题
Haven’t you enough common ________ to know that it is unwise to go outside in such a hazy (雾霾的) day? You may get lost.
A．practice
B．sense
C．rule
D．goal.
答案
B
题目分析：句意：你有没有足够的常识知道在这样的雾霾天气外出是不明智的，你可能会迷路。词组：常识“common sense”，A. common practice惯例， C. rule规定， D. goal目标，都不符合句意。选B.