单项选择题

The word "pitfalls" in the last paragraph probably means ______.

A．problems.
B．grievance.
C．puns.
D．knowledge.
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单项选择题
______ cannot serve as evidence of Noam Chomsky's theory of deep grammar .
A．"He never forgaved her for teasing him."
B．"She beganed to feel a sense of panic."
C．"Sheeps were grazing on the hillside."
D．"There are a desk and two chairs here."
单项选择题
If there is another paragraph following the passage, it might talk about ______.
A．what the results of Dr. Gil's research on Riau Indonesian.
B．what the results of linguists' research on Riau Indonesian.
C．how Dr. Gil carries out his research on Riau Indonesian.
D．how linguists carry out their research on Riau Indonesian.
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