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I am _______ about what I say because ca...

I am _______ about what I say because careless remarks are likely to hurt others’ feelings.

A.enthusiastic B.concerned

C.doubtful D.cautious

 

D 【解析】 考查形容词短语辨析。句意:对于所说的话我很谨慎,因为粗心的评论很可能伤害到其他人的感情。be enthusiastic about对……热情;be concerned about关注;be doubtful about怀疑;be cautious about对……很谨慎。根据because引导原因状语从句,说明“要对说的谨慎”,说明D正确。故选D。  
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