He bad-mouthed me. This example shows that compounds are differe

He bad-mouthed me. This example shows that compounds are different from free phrases in（ ）features.
A、phonetic
B、semantic
C、grammatical
D、lexical
【正确答案】：C
【题目解析】：本题考查复合词的语法特征。phonetic：语音的；semantic：语义的；grammatical：语法的；lexical：词汇的。复合词在语法上独立作成分，如动词、名词、形容词等。bad-mouth作动词时，有第三人称单数bad-mouths和一般过去时bad-mouthed等形式。故C选项符合题意。