求英语语法大神!Great as Newton was, many of his ideas___C___today a
求英语语法大神! Great as Newton was, many of his ideas___C___today and are being modified by the work of scientists of our time. A.are to challenge B.may be challenged C.have been challenged D.are challenging 正确答案是C,我选了D,求解释啊
首先弄明白challenge的意思,动词:挑战,质疑;名词:挑战.在此作动词:质问. 选项分析:BC均为被动,C为现在完成时;AD是主动,A表将来时,B表现在进行时; many of his ideas:他许多的想法,应该是他的想法被质疑,而不是他的想法质疑,排除AD; 他的许多想法已经被质疑,所以才被改进modified,所以选C
Jack's laptop is the latest in the market. There is always something exciting in that old movie. Many highways have been built among different cities. Jack owns a house as big as Tom does,...