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Professor Johnson is said ______ some significant advance in his research in the
Professor Johnson is said ______ some significant advance in his research in the
游客
2023-10-16
14
管理
问题
Professor Johnson is said ______ some significant advance in his research in the past year.
选项
A、having made
B、making
C、to have made
D、to make
答案
C
解析
(be said)to do据说做…了。又因不定式动作发生在主句动作之前,故应使用完成时,因此C项为正确答案。
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