填空题

He played a(pioneer) ______ role in flying in space.

【参考答案】

pioneering。
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单项选择题
A．Thank you very much.B．Thanks a lot.C．Thanks anyway.D．That was a good magazine.
A．Thank you very much.
B．Thanks a lot.
C．Thanks anyway.
D．That was a good magazine.
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This incident( sharp) ______ the awareness of the public,
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