【题目】Try to eat food groups _ _ vitamins A, C and E—they will do lots of good to your eyesight.
A. containing B. contained
C. to contain D. to be contained
在线课程【答案】A
【解析】
试题分析：考查非谓语动词。句意：尽量多吃含维生素A、C和E的食物组合——它们对你的视力有很大帮助。这里把contain前置在名词vitamins A, C and E的前面，应用现在分词containing作定语。故选A。