Not until the train pulled into the station that his suitcase was gone.
A. did he find
B. had he found
C. he had found
D. he found
网友回答
(答案→)A. did he find
B. had he found
C. he had found
D. he found
解析：句意：直到火车驶入车站时他才发现他的行李箱不见了。否定词位于句首句子倒装，本句是find和火车进站同时发生，故排除B，选A。
考点: 考查倒装句式的用法。