no sooner ( )home than it began to rain.A he had got B he ha

答案：C
从 it began to rain 看,用的是过去时,排除现在完成时 B,D
No sooner 放句首要部分倒装,所以把had 放在主语之前
例如：
No sooner had we arrived than a firestorm broke out in arkansas involving the football team。
我们刚到那里,阿肯色州的球队就爆发了与球员有关一场轩然大波。
不明白的再问哟,请及时采纳,多谢!