Professor Johnson is said__________some significant advance in his research in t

游客2023-11-22 25

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

解析语法结构。由于Professor Johnson去年的研究取得重大进展先于“据说”之前，故应用不定式完成式。故D不对。be said to do/have done/be为常用结构。

转载请注明原文地址:https://tihaiku.com/zcyy/3210161.html

相关试题推荐

随机试题

最新回复(0)

Beingabletochoosethesexofchildreninadvanceisnothingnew—paren