单项选择题

The basic difference between vowels and consonants is ______.

A. the shape of lips
B. the vibration of the vocal folds
C. whether the sound’s production is accompanied by a puff of breath
D. whether the air stream meets with any obstruction

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单项选择题

All of the following adjectives describe Annabel’s impression of the landscape EXCEPT ______.

A．languid
B．repressive
C．enchanting
D．boring

单项选择题

Which of the following statements is NOT true of Riau Indonesian

A．It is quite different from standard Indonesian.
B．It shares some features with Western languages.
C．There are no distinct features between nouns and verbs.
D．It is hard for Western linguists to differentiate verb tenses.