单项选择题

"Was it a he or a she" (Line 6, Para.2) may be replaced by______.

A．Who did it
B．Who was the person who wrote it
C．Did he or she write it
D．Was it written by a man or a woman
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单项选择题
Bill Keaggy collects grocery lists because______.
A．he wants to post them online
B．he is curious about the list writers
C．he tries to find out something behind them
D．he does it for amusement
单项选择题
From the passage we may infer that the Toyota's Partner ______.
A．is much better than any other robots
B．is no more than a mechanic device
C．may be put into mass production
D．may speak like man
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