单选题 The teacher often warns the students that they can't be ______ careful in doing experiment.
  • A) much
  • B) most
  • C) so
  • D) too


【正确答案】 D
【答案解析】[译文] 老师经常提醒学生做试验再仔细也不为过。
[解析] 考查副词的固定搭配。can't，can never与too连用，表示“再……也不为过，越……越好”，故答案为D)。