Professor Smith is said______another important discovery in chemistry.A、to make

游客2025-03-09 40

问题 Professor Smith is said______another important discovery in chemistry.

选项 A、to make
B、to have made
C、having being made
D、having made

答案 B

解析本题考查be said to do的用法。题干大意是：据说史密斯教授在化学领域又做出了一项重要的发现。事情已经发生过了，所以不定式用完成时形式。

转载请注明原文地址:http://tihaiku.com/zcyy/3989940.html

相关试题推荐

随机试题

最新回复(0)

Itisextremelyimportantforanengineertoknowtouseacomputer.A、ItisB、ex