| [求助]大全136，ever more striking不是代表现在完成时吗？
刚才在语法论坛，搜索了一下，居然没有人问过这道题， 羞愧啊！这道题我选择了C而不是D就是因为我觉得ever more striking代表的是现在完成时，比以前任何都更显著，那不就是从现在开始往前推无数年？为什么大全注释说这里没有时间标志词，becomes看起来更合适！请大家给我解释解释！谢谢~~
136. As researchers continue to probe the highly expressive vocal and postural language of wolves, their close resemblance to dogs has become ever more striking.
(A) their close resemblance to dogs has become
(B) the closeness of their resemblance to dogs has become
(C) the close resemblance between them and dogs has become
(D) the close resemblance between wolves and dogs becomes（D） (E) the close resemblance of wolves with dogs becomes | 
