According to the text, what is the main reason for developing a good vocabulary?
A. to enlarge the size of our world
B. to receive and send your thoughts more effectively and correctly
C. to promote our economic advantage
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What is the best way to improve our vocabulary according the author?
A. through a good memory
B. through referring to dictionaries
C. through reading
He was taken prisoner in the war and spent next two years in the prison-of-war camp in the south.
A. /, the
B. /,/
C. the,/
Her speech made a profound on everyone.
A. affection
B. impact
C. influence
D. academy
Which of the following expressions mean similar to each other?
A. once in a while
B. once upon a time
C. occasionally
D. now and then
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