题目内容
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
试题答案
19、B
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.