19、On February 11, a US satellite and a burnt-out Russian satellite ran into each other, ________ clouds of space debris （碎片） that could threaten nearby spacecraft.
A. created B. creating C. to create D. has created
19、B
科目：高中英語(yǔ) 來(lái)源： 題型：
On February 11, a US satellite and a burnt-out Russian satellite ran into each other, ________ clouds of space debris （碎片） that could threaten nearby spacecraft.
A. created B. creating C. to create D. has created
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