According to the text, when might communication difficulties arise？
A. When the messages sent do not fit the social norms expected by the receiver.
B. When there is mutual distrust between the involved parties.
C. When the parties involved strongly desire interaction.
D. When the parties involved fail to use nonverbal cues.
According to the author, nonverbal cues______.
A. are primarily used for deception
B. are not used much by children
C. can influence how we are perceived by others
D. are not usually used in successful relationships
分别论述“生成转换语法理论”与“生成语义说”的具体内容。
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