Professor Johnson is said ______ some significant advance in his research in the

游客2023-10-16 61

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。

转载请注明原文地址:http://tihaiku.com/zcyy/3102794.html

相关试题推荐

随机试题

最新回复(0)

Whathastheresearchfound?[br][originaltext]Inthissection,youwillhear