问题
选择题
It _________ there is a disaster _________ people will think much of the safety.
A．is until; when
B．is until; that
C．isn’t until; when
D．isn’t until; that
答案
答案：D
此题考查含有not until 的强调句型。结构为 it is /was + not until + 其它+ that，句意：就是直到有灾难的时候人们才考虑更多的安全。所以选D。