单选题Jack took part in th

问题补充：

单选题Jacktookpartinthespeechcontestand,______ismoresurprising,wonthefirstplace.A.thatB.whatC.whichD.it

答案：

C解析这题考查非限制性定语从句，非限制性定语从句也是插入语，去掉后这句话是：Jack took part in the speech contest and won the first place.是个完整的句子，which指代的是won the first place.选C。