Recently I bought an ancient Chinese knife was reasonable.A. which priceB. the price of wh

问题补充：

Recently I bought an ancient Chinese knife,was reasonable.

A. which price

B. the price of which

C. its price

D. the price of that

答案：

A. which price

(答案→)B. the price of which

C. its price

D. the price of that

解析：考查定语从句。本题的先行词是knife，关系代词which指代先行词knife作为of的宾语。句意：最近我买了一把中国古代的刀，它的价格很合理。C项不是定语从句。That不能放在爱介词的后面，排除CD。Which不能修饰price.故B正确。