The Sapir-Whorf hypothesis is about______.
A. language and thought
B. language and translation
C. sentence structure
D. second language acquisition
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The style. of "Visitors should go up the stairs at once. " is______.
A. formal
B. consultative
C. frozen
D. intimate
In terms of linguistic efficiency, dialect is______standard English.
A. inferior to
B. superior to
C. as good as
D. not so good as
The dialect which is caused by social status is______.
A. idiolect
B. regional dialect
C. sociolect
D. diglossia