____they arrived inNew Zealand?Perhaps,last friday

问题描述:

____they arrived inNew Zealand?Perhaps,last friday
Awhen it was that Bwhen was it Cwhen was it thatDwhen was that

C
这里是一个强调结构,把it was that 去掉就是原来没有强调的句子了,还有就是,这时特殊疑问句,所以用was it,所以选C