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题目内容
（信阳师范学院-英语语言学）
Phrase structure rules allow us to better understand _____________.
A.how words and phrases form sentences.
B.what constitutes the grammaticality of strings of words
C.how people produce and recognize possible sentences
D.all of the above.
A.how words and phrases form sentences.
B.what constitutes the grammaticality of strings of words
C.how people produce and recognize possible sentences
D.all of the above.
参考答案