saithoca
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The Herschel space observatory has made detailed observations ---- surprisingly hot gas that may be orbiting or falling towards the supermassive black hole hanging around ---- the center of our Milky Way galaxy.
A) for / on
B) by / between
C) of / at
D) beneath / into
E) from / amongst
A) for / on
B) by / between
C) of / at
D) beneath / into
E) from / amongst