------when she started complaining.ANot untill had he arrived BNo sooner had he arrivedCHardly had he arrivedDScarcely did he arrive

------when she started complaining. A.Not untill had he arrived B.No sooner had he arrived
C.Hardly had he arrived D.Scarcely did he arrive
选项是C.
Hardly放句首句子倒装 had he arrived。这种句型常常用过去完成时。
意思是：“他几乎还没到达/他刚刚到达，她就开始抱怨了”。
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Hardly had he arrived when she started complaining
倒装句的一种形式 hardly,in no way,little,scarcely,seldom,never,no more, no longer,not, not only, no sooner, not only … (but also),not until… 等具有否定意义的词或词组位于句首,句子用部分倒装。
再比如
1.No sooner had I got home than it began to rain.
我刚到家就下起了雨。
2.Seldom do I go to work by bus.
我很少乘公共汽车上班。
选C的原因是意思符合，他还没到，她就开始骂了

C Hardly had he arrived hardly/scarcely had sb. done sth. when...=No sooner had sb. done sth. than ... 某人刚做了某事,就. not until sb. did sth. + 倒装句, 直到...才... 句意: 他刚刚到达, 她就开...

C
hardly had......when....一,,,,,就...