单选题 The employees objected to complying with the new safety regulations, saying that they are too ______ to adopt.
  • A. frustrated
  • B. frustration
  • C. frustrate
  • D. frustrating
【正确答案】 D
【答案解析】[解析] 动词形态:形容词 1.这是一道词汇选择题,选项均为frustrate的不同形式。 2.句中出现too+adj+to结构,空格处应该填入形容词或分词结构。 3.frustrate(使……挫败)是及物动词,经常考查其分词形式。frustrate和主语they (safety regulations)“新的安全条例”是主动关系,因此D.frustrating为正确选项。