In my opinion, parents and teachers are supposed to set an example of good behavior to children _____ they are role models to them.A.althoughB.even ifC.unlessD.as
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D解析本题考查连词。although虽然；尽管；even if即使；unless除非；as因为；句意：在我看来，父母和老师都应该为孩子树立好榜样，因为他们是孩子的榜样。