2. 外语
  3. Professor Johnson is said______some significant advance in his research in the past year.

Professor Johnson is said______some significant advance in his research in the past year.

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问题 Professor Johnson is said______some significant advance in his research in the past year.
选项 A、having
B、making
C、to have made
D、to make
答案C
解析 (be said)to have done sth．意为“据说已经……”。本题考查不定式及时态的用法。to have done sth．在该句可以满足(be said)to do sth．的习惯用法，又因为不定式动作发生在主句动作之前，故C符合要求。
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