Professor Johnson is said ------some significant advance in

学习 时间:2026-04-07 16:42:06 阅读:8190
Professor Johnson is said ------some significant advance in his research in the past year. ( )A having made B making C to have made D to make 请说明详细原因,谢谢!

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灵巧的嚓茶

魁梧的板凳

2026-04-07 16:42:06

C此处使用不定式作非谓语动词,因为主句的位于是said而且时间是in the past year所以应该用现在完成时。

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  • 苗条的仙人掌
    回复
    2026-04-07 16:42:06

    C此处使用不定式作非谓语动词,因为主句的位于是said而且时间是in the past year所以应该用现在完成时。

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