单选题 Store owners in the business district were ______ concerned about new regulations because they had been anticipating it for months.
  • A. hard
  • B. hardest
  • C. harder
  • D. hardly
【正确答案】 D
【答案解析】[解析] 单词形态：副词 1．这是一道词汇形态选择题，选项均为hard的不同形式。 2．be动词和过去分词间可填入一个副词，副词hardly表示否定，意为“几乎不……”，因此D为正确选项。