单项选择题

A．More than two billion.
B．More than three billion.
C．More than Four billion.
D．More than Six billion.
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单项选择题
Which two words are NOT antonyms
A．Father and son.
B．Male and female.
C．Doctor and patient.
D．Wolf and fox.
单项选择题
The poem I Felt a Funeral, in My Brain was written by ______.
A．Walt Whitman
B．Emily Dickinson
C．Harriet Beecher Stowe
D．Mark Twain
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