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theoldscientistwithhistwostudents__theprizeintheGreatHallofthePeople.a.wasseenacceptb.wereseenacceptc.wasseentoacceptd.wereseentoaccept写出原因!
题目内容：
the old scientist with his two students__the prize in the Great Hall of the People.
a.was seen accept
b.were seen accept
c.was seen to accept
d.were seen to accept
写出原因!
a.was seen accept
b.were seen accept
c.was seen to accept
d.were seen to accept
写出原因!
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