A proposal has been put forward at a recent video conference measures be taken to raise the citizens’ awareness of traffic safety.
A. that
B. as
C. when
D. which
网友回答
(答案→)A. that
B. as
C. when
D. which
解析：句意：在最近一次录像会议上提出了一个建议要采取措施提高居民的交通安全意识。这里使用的是同位语从句，说明proposal的内容，因为同位语从句是完整的，所以用that引导。选A。