2. 外语
  3. Some people view the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer remai

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

admin2012-08-22  28
问题 Some people view the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer remains______.
选项 A、to be shown
B、to have shown
C、to have been shown
D、being shown
答案A
解析 remain to be shown“尚待揭示”，不定式的一般式表示要实现的情况，其完成式表示已发生的情况。remain doing“保持……；一直……”，如：He remained standing for one hour．他一直站了一个小时。
转载请注明原文地址:https://kaotiyun.com/show/VWXO777K
0

在职攻硕英语联考

相关试题推荐
随机试题
最新回复(0)