2. 考研
  3. Some people viewed the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer rem

Some people viewed the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer rem

admin2014-06-13  44
问题 Some people viewed the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer remained______.
选项 A、to be shown
B、to have been shown
C、to have shown
D、being shown
答案A
解析 语法题。句意是，一些人谨慎地看待这些发现，他们注意到被动吸烟和癌症之间的因果关系有待揭示。remain to be done为惯用法，表示“有待于(被做)”。所以正确答案是A选项。
转载请注明原文地址:https://jikaoti.com/ti/mvMRFFFM
0

考研英语一

相关试题推荐
随机试题
最新回复(0)