I am about what I say because careless remarks are likely to hurt others’ feelings
A. enthusiastic
B. concerned
C. cautious
D. doubtful
网友回答
A. enthusiastic
B. concerned
(答案→)C. cautious
D. doubtful
解析：考查形容词：A. enthusiastic热情的，B. concerned担心的，C. cautious 小心的，D. doubtful怀疑的，句意：我对我说的话很小心，因为粗心的话可能会伤害别人。选C。