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Verbal·Standard English Conventions·Boundaries
hard
On May 11, 2009, the space shuttle Atlantis blasted off into space, commencing Mission        twelve days and twenty-one hours, the mission ended when the shuttle landed at Edwards Air Force Base in California.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
STS-125 lasting
B
STS-125. Lasting
C
STS-125, lasting
D
STS-125, it lasted