当前位置: X题卡 > 所有题目 > 题目详情

This proved an important contribution toward the public health.

查看本题答案

你可能感兴趣的试题

is proved    had proved    has proved    has been proved  
had been proved    was proved    had proved    proved  
proved to    proved us    was proved    proved  
sufficiently  noticeably  intentionally  absolutely  
was proved               has been proved   proved                 is proved  
was proved    had proved    proved    had been proved  
was proved              proved   has been proved           proved as  
to proved  to proving  proved  to be proved  
to proved  to proving  proved  to be proved  
proving  proved  was proved  be proved  
The; an    The; the    A; the    A; /  
The; an   The; the   A; the   A; /  
proved being  proved  were proved  was proved that  
was proved    proved as    proved to be    is proved to be  
had been proved   was proved   had proved   Proved  
proved, belonged    was proved, was belonged
  
proved, was belonged    was proved, belonged  
have been proved    proved    have proved    are proved  
Hosted; which  To host; as  Hosting; that  Hosting; which  
to proved    to proving    proved    to be proved  

热门试题

更多