单项选择题

The best title for this passage is ______.

A．Humans
B．Robots
C．Computer
D．Metal Hand
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单项选择题
______ I am I will be thinking of you.
A．Wherever
B．When
C．As
D．Whether
单项选择题
I will be late ______ I leave immediately.
A．unless
B．until
C．if
D．or
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