[ Grammar ]
An astronomer is a person ________________ studies stars, planets, and galaxies.
A. who
B. whom
C. whose
D. that
Select your answer:

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A. Of
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“My father __________ his chicken rice stall all his life and will continue to do so until he finds a successor,” Wee Nam Kee told the reporter.
A. ran
B. runs
C. had run
D. has been running
