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2.Mr.Herpin is one of the foreign experts who ______ in Chin

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2.
Mr.Herpin is one of the foreign experts who ______ in China.
A.works B.
is working C.are working D.has been working
3 .
Tom is the only one of the students who ______ to Shanghai.
A.have gone
B.have been C.
has been D.had gone
2.选C
3.选C
one of the + n-s充当定语从句先行词时,如果one前没有定冠词,就是n-s充当先行词;
当引导词充当主语时,谓语就用复数.
如果one前有the,先行词就是one;
当引导词充当主语时,谓语就用单数.
2.Herpin先生是在中国工作的专家之一.(很多在中国工作的专家)
3.Tom是去过上海的唯一的学生.(只有Tom去过上海)