2. 职称英语
  3. Great as Newton was, many of his ideas ______ today and are being modified by th

Great as Newton was, many of his ideas ______ today and are being modified by th

游客2023-11-11  39
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 根据句意，所填空应使用被动语态，因此首先排除A 和D 。B may be challenged和后半句中的are being modified相矛盾，故答案为C 。
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