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A．A little.
B．No.
C．Sometimes.
D．Yes.
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单项选择题A．So willI.B．Neither doI.C．I will do so.D．So do

A．So willI.
B．Neither doI.
C．I will do so.
D．So do

单项选择题Future space exploration will______.

A．be more difficult than it was in the past
B．be more dangerous than in the past
C．be more lonely than in the past
D．cover a larger area than any exploring done before