_________ Chicago is a beautiful city today,but_________ Chicago of the 1920s was a very dirty place.

• A、The ; the
• B、/ ;/
• C、A ; the
• D、/ ; the

According to the passage," Flores Human"__________ .

• A、lived a partly human life 

• B、was a branch of Homo sapiens

• C、used tools before Homo sapiens arrived

• D、had a brain as large as a common chimp's

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