问题补充:
Though measures have now been taken to prevent further price hikes, many people remain over the rising cost of food.
A. be concerning
B. concerns
C. concern
D. concerned
答案:
A. be concerning
B. concerns
C. concern
(答案→)D. concerned
解析:考察concern用法。形容词concerned担心的;与系动词remain连用,构成系表结构。Concerns是名词担心;句意:尽管措施已经被采取来预防价格上涨,很多人仍然对于食品价格的上涨很担心。故D正确。