问题
选择题
Not until Tom got off the bus _______ his mobile phone missing.
A．did he find
B．he found
C．didn’t he find
D．he didn’t find
答案
答案：A
题目分析：考查倒装句：直到汤姆下车以后才发现手机没了。not until........ "直到....才....."的句型，以否定词not until开头的英语句子，后面主句一定要用到装：即把助动词提前+动词，选A。