Hardly ______ when a loud explosion was heard.

admin2011-02-26  48

问题 Hardly ______ when a loud explosion was heard.

选项 A、the train had started
B、the train had been started
C、had the train started
D、did the train start

答案C

解析
转载请注明原文地址:https://jikaoti.com/ti/GaXYFFFM
0

随机试题
最新回复(0)