Great as Newton was, many of his ideas______today and are being modified by the

游客2023-11-07 35

问题 Great as Newton was, many of his ideas______today and are being modified by the work of scientists of our time.

选项 A、are to challenge
B、may be challenged
C、have been challenged
D、are challenging

答案 C

解析时态。challenge意为“挑战，怀疑”，常用作及物动词。本句中牛顿的观点受到挑战为一个当前已经发生的事实，故采用现在完成时的被动语态。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3165665.html

相关试题推荐

随机试题

最新回复(0)

Theoriginaltexthasbeenmodifiedso______thatitisbarelyrecognizable.A、r